The best greenhouse seed starting kits balance protected growing space with the right support for your seedlings, whether that means a humidity dome, grow lights, or a heat mat. I’d put the BlumWay 80-cell kit with a grow light in the best-overall spot for pairing substantial capacity with built-in lighting, while the Mr. Pen 400-cell set suits growers who need lots of planting space and the Jiffy windowsill kit keeps a small first sowing simple. The main tradeoff is between low-cost trays with fewer extras and kits that bundle lighting or heat but take up more space. Cell count, included growing supplies, and fit with your available light matter as much as the greenhouse cover. Read on for the full breakdown and help matching a kit to your growing setup.
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Key Takeaways
- BlumWay earns the best-overall spot because it combines 80 cells with a grow light and humidity dome, rather than prioritizing capacity alone.
- Mr. Pen offers the largest stated capacity at 400 cells, but its tray-focused setup is a better match for growers who already have a suitable place to provide light.
- Heat-and-light bundles target a different problem from basic domed trays: SOLIGT and the 36-cell kit with heat mat are aimed at growers managing both warmth and light.
- More cells do not automatically mean more usable growing space. Small-cell kits can support many starts, but seedlings may need potting up sooner than those in roomier cells.
- Peat or coir pellet kits simplify sowing and transplanting, while trays without included growing media give buyers more choice but add a separate supply decision.
| 5-Pack Seed Starter Trays with Humidity Dome and Base – 12-Cell, Green |  | Best for Larger Seeds | Total cell count: 60 across 5 trays | Cells per tray: 12 | Cell size: 1.5 in square | VIEW LATEST PRICE | See Our Full Breakdown |
| BlumWay Seed Starter Tray with Grow Light, Humidity Dome, 2-Pack, 80 Cells |  | Best Compact Kit with Built-In Lighting | Tray count: 2 | Total cell count: 80 | Grow lights: 4 full-spectrum strips | VIEW LATEST PRICE | See Our Full Breakdown |
| Mr. Pen Seed Starter Tray Kit, 10-Pack, 400 Cells |  | Best for High-Volume Starts | Tray count: 10 | Cells per tray: 40 | Total cell count: 400 | VIEW LATEST PRICE | See Our Full Breakdown |
| MIXC 10-Pack Seed Starter Tray Kit, 120 Cells with Humidity Domes, Green |  | Best Value for Batch Organization | Number of sets: 10 | Total cell count: 120 | Cells per tray: 12 | VIEW LATEST PRICE | See Our Full Breakdown |
| Patigrow 60-Cell Self-Watering Seed Starter Tray with Grow Lights |  | Best for Low-Maintenance Indoor Starts | Model: SWSST-L60 | Cell count: 60 | Material: BPA-free PET | VIEW LATEST PRICE | See Our Full Breakdown |
| MIXC 5 Pack Seed Starter Tray, 200-Cell Mini Propagator Greenhouse Grow Kit |  | Best for High-Volume Seed Starting | Cell count: 200 total across five trays | Cell size: 1.5 × 1.5 × 2 inches | Dome height: 2.75 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| Seed Starter Tray Kit with Grow Lights and Heat Mat, 36 Cells |  | Best All-in-One Indoor Setup | Cell count: 36 | Timer settings: Four | Heating mat: Far-infrared heating technology | VIEW LATEST PRICE | See Our Full Breakdown |
| Jiffy 36 mm Windowsill Greenhouse Kit, 2 Pack |  | Best for Simple Windowsill Starts | Pack count: 2 kits | Peat pellets: 12 | Pellet size: 36 mm | VIEW LATEST PRICE | See Our Full Breakdown |
| Bonviee Seed Starter Trays with LED Grow Lights, Green, 5-Pack |  | Best for Individually Lit Small Batches | Tray quantity: 5 | Planting cells: 60 total; 12 per tray | Grow lights: 12 LEDs per tray | VIEW LATEST PRICE | See Our Full Breakdown |
| Bonviee Seed Starter Trays with 12-LED Grow Lights, 5 Pack |  | Best for Clear Moisture and Root Monitoring | Pack count: 5 trays | Total cells: 60 | Grow lights: 12 LEDs per tray | VIEW LATEST PRICE | See Our Full Breakdown |
| SOLIGT 60-Cell Seed Starter Tray Kit with Grow Light and Heat Mat |  | Best All-in-One Indoor Kit | Brand: SOLIGT | Cell count: 60 | Grow light: 11.5 W, 4500 K; 15 red and 111 white LEDs | VIEW LATEST PRICE | See Our Full Breakdown |
| Halatool Seed Starter Tray Kit with Peat Pellets, 48 Cells, Black |  | Best for Flexible Indoor or Outdoor Starts | Brand: Halatool | Tray cells: 48 total across 4 trays | Included components: 4 base trays, 4 seed trays, 4 humidity domes, and 50 peat pellets | VIEW LATEST PRICE | See Our Full Breakdown |
| Burpee 72-Cell Seed Starting Kit with Greenhouse Dome and Coir Pellets |  | Best for High-Capacity Organized Starts | Brand: Burpee | Model: 94062 | Capacity: 72 seedlings | VIEW LATEST PRICE | See Our Full Breakdown |
| greenhouse seed starting kit | Material | Included components | Dimensions |
|---|---|---|---|
| 5-Pack Seed Starter Trays with | Clear plastic | 5 trays, 5 bases, 5 domes, 10 plant labels | 4.3 in D x 6.7 in W x 5 in H |
| BlumWay Seed Starter Tray with | ABS plastic | — | — |
| Mr. Pen Seed Starter Tray Kit | — | 10 base trays, 10 seed trays, 10 humidity domes, dibber, widger | 14.5 x 9 x 4.3 in |
| MIXC 10-Pack Seed Starter Tray | Plastic | 10 seed trays, 10 watertight base trays, 10 humidity domes, 10 plant labels | 7.28 x 5.67 x 6.5 in |
| Patigrow 60-Cell Self-Watering | BPA-free PET | Humidity dome, 2 vents, 60-cell tray, base tray, capillary mat, support stand, grow light system, plant box, 2 power cords, 20 plant labels, 2 gardening tools | 11 x 16.6 x 7.28 in |
| MIXC 5 Pack Seed Starter Tray | Plastic | — | — |
| Seed Starter Tray Kit with Gro | — | Heat mat, seed tray, grow lights, controller, humidity domes, plant labels, and tools | — |
| Jiffy 36 mm Windowsill Greenho | — | — | — |
| Bonviee Seed Starter Trays wit | PET and PP | Five cell trays, five base trays, five domes, five grow lights, one-to-five USB cable, and 10 labels | 5.5 × 7.25 × 4.4 inches |
| Bonviee Seed Starter Trays wit | PET and PP | — | 5.7 × 8.5 × 5.5 inches |
| SOLIGT 60-Cell Seed Starter Tr | — | — | — |
| Halatool Seed Starter Tray Kit | Plastic trays; peat pellets with degradable non-woven fabric | 4 base trays, 4 seed trays, 4 humidity domes, and 50 peat pellets | 5 × 8 × 7 inches |
| Burpee 72-Cell Seed Starting K | Coconut coir pellets | Two 36-cell trays, water reservoir tray, 72 coir pellets, dome cover, two planting diagrams, and six 4-inch plant markers | — |
More Details on Our Top Picks
5-Pack Seed Starter Trays with Humidity Dome and Base – 12-Cell, Green
For greenhouse growers starting fewer plants at a time, these Bonviee trays give each seedling more room than the 40-cell Mr. Pen kit. Each tray has just 12 cells, with 1.5-inch square openings suited to larger seeds such as tomatoes or potatoes. Clear plastic makes root development visible, while adjustable dome vents let you reduce humidity as seedlings emerge. The five bases and domes make it possible to separate batches or growing conditions, and the trays can be used with a heat mat. The tradeoff is capacity: 60 cells total is modest beside Mr. Pen’s 400, and the product data notes that the plastic may become brittle with extended reuse. The clear domes also call for careful handling.
Pros:- Roomy 1.5-inch square cells suit larger seeds and developing roots.
- Clear plastic makes it easier to check root growth without disturbing seedlings.
- Adjustable vents allow humidity control as seeds germinate and grow.
- Five trays, bases, and domes can be managed as separate batches.
Cons:- The 60-cell total is limited compared with the 400-cell Mr. Pen kit.
- Plastic may become brittle with long-term use.
- Humidity domes may be fragile during handling.
Best for: Greenhouse gardeners starting a small batch of larger-seeded vegetables who want roomier cells and separate humidity domes.
Not ideal for: Growers raising hundreds of small seedlings or anyone seeking heavy-duty trays for frequent, long-term reuse.
- Total cell count:60 across 5 trays
- Cells per tray:12
- Cell size:1.5 in square
- Material:Clear plastic
- Dimensions:4.3 in D x 6.7 in W x 5 in H
- Included components:5 trays, 5 bases, 5 domes, 10 plant labels
- Weight:12.16 oz
- Color:Green
Our verdict“Choose this Bonviee set for fewer, larger seedlings and controllable humidity, but pick Mr. Pen if your greenhouse needs far more cells.”
BlumWay Seed Starter Tray with Grow Light, Humidity Dome, 2-Pack, 80 Cells
The BlumWay kit is a space-conscious choice for indoor greenhouse-style seed starting when a separate lamp is not part of the setup. Its four full-spectrum light strips have five brightness levels and timer options, giving seedlings a dedicated light source without adding another fixture. The two trays provide 80 cells, more than the Bonviee 12-cell set’s 60, but far fewer than the Mr. Pen kit’s 400; that middle capacity suits a household’s seasonal starts better than a large propagation operation. Vents and drainage holes help manage moisture beneath the clear domes, and the deeper cells offer room for roots. The main limitation is power: the lights need a USB connection or plug-in adapter, so the kit is not self-contained away from an outlet or power source.
Pros:- Four full-spectrum light strips are integrated into the kit.
- Five brightness levels and three timer settings allow lighting adjustments.
- Humidity vents and drainage holes support moisture management.
- 80 cells provide more capacity than the Bonviee 60-cell set.
Cons:- Grow lights require a USB connection or plug-in adapter.
- Capacity is much lower than the 400-cell Mr. Pen kit.
- The two-tray format offers less flexibility for separating many planting batches.
Best for: Indoor growers with limited space who want moderate seed capacity and integrated, timer-controlled lighting.
Not ideal for: Greenhouse operators who need hundreds of cells, or growers without a convenient USB or plug-in power source.
- Tray count:2
- Total cell count:80
- Grow lights:4 full-spectrum strips
- Light controls:5 brightness levels; 3 timer settings: 3H, 6H, 12H
- Dome height:9 cm
- Cell depth:1.96 in
- Material:ABS plastic
- Power:USB or plug-in adapter
Our verdict“Pick BlumWay if you want a compact 80-cell setup with built-in, adjustable lights and can provide its power connection.”
Mr. Pen Seed Starter Tray Kit, 10-Pack, 400 Cells
When greenhouse plans call for a large number of seedlings, the Mr. Pen kit’s 400 cells across ten trays make it the capacity leader among these five picks. Its vented, transparent domes help retain humidity while allowing visual checks, and the included dibber and widger add practical support for sowing and transplanting. Compared with MIXC’s 120-cell kit, Mr. Pen is a better match for a full-season propagation run, but it takes more room and offers fewer moisture-management extras: MIXC includes watertight bases and plant labels, while Mr. Pen’s listing does not specify tray material. This is an indoor-use kit, so greenhouse growers should plan where it will sit and how seedlings will receive light and heat. It prioritizes volume and basic tools over integrated lighting or self-watering.
Pros:- 400 cells across ten trays support high-volume propagation.
- Vented transparent domes help retain humidity while allowing observation.
- Includes a dibber and widger for sowing and transplanting.
- Ten separate trays make it practical to organize multiple seed batches.
Cons:- Large capacity requires substantial shelf or bench space.
- Designed for indoor use rather than outdoor placement.
- Tray material is not specified, making durability harder to judge.
Best for: Greenhouse gardeners, classrooms, and community growing projects that need to start hundreds of seedlings in batches.
Not ideal for: Small-space growers wanting built-in lights, self-watering, or a compact kit with clearly specified tray material.
- Tray count:10
- Cells per tray:40
- Total cell count:400
- Included components:10 base trays, 10 seed trays, 10 humidity domes, dibber, widger
- Dimensions:14.5 x 9 x 4.3 in
- Weight:2.24 kg
- Color and shape:Black, rectangular
- Usage:Indoor
Our verdict“Choose Mr. Pen when cell capacity matters more than built-in lighting, self-watering, or a compact footprint.”
MIXC 10-Pack Seed Starter Tray Kit, 120 Cells with Humidity Domes, Green
MIXC suits growers who want several manageable planting batches rather than one large block of seedlings. Ten sets provide 120 cells total, with a dome, watertight base, and label for each tray. That modular layout is easier to sort by crop or sowing date than the Mr. Pen kit’s 400-cell capacity, though it gives up a great deal of volume. Adjustable vents and drainage holes offer control over humidity and excess water, while the light plastic is easy to move between indoor and outdoor growing areas. The compromise is cell size: each tray has 12 cells, which may be too small for seedlings that need more room. Compared with Patigrow, MIXC also lacks built-in lights and a self-watering system, so it depends more on the grower’s routine and separate equipment.
Pros:- Ten separate sets help organize crops and sowing dates.
- Each set includes a watertight base, humidity dome, and plant label.
- Adjustable vents and drainage holes support humidity and water control.
- Lightweight trays can be moved between indoor and outdoor growing areas.
Cons:- The 12-cell trays may not provide enough room for some seedlings.
- Plastic construction may be less durable than sturdier materials.
- Unlike Patigrow, the kit has no built-in grow lights or self-watering system.
Best for: Gardeners who sow different crops in separate, portable batches and want domes, bases, and labels included.
Not ideal for: Growers raising large seedlings in spacious cells or anyone who wants integrated lighting and self-watering.
- Number of sets:10
- Total cell count:120
- Cells per tray:12
- Included components:10 seed trays, 10 watertight base trays, 10 humidity domes, 10 plant labels
- Material:Plastic
- Dimensions:7.28 x 5.67 x 6.5 in
- Capacity:3.05 liters
- Weight:16 oz
Our verdict“Choose MIXC for portable, clearly separated planting batches with included bases and labels, but look to Patigrow for automated moisture and lighting support.”
Patigrow 60-Cell Self-Watering Seed Starter Tray with Grow Lights
Patigrow combines the two pieces of support that separate it from simpler greenhouse kits: capillary self-watering and adjustable LED grow lights. The mat and base help maintain moisture between checks, while brightness and timer controls let growers adapt light as seedlings develop. Its 60 cells are fewer than BlumWay’s 80 and far below Mr. Pen’s 400, so this is a control-oriented setup rather than a high-volume one. The included support stand, labels, and gardening tools add useful accessories, and two adjustable vents give growers a way to manage humidity. The tradeoff is that the added system needs indoor space, power, and more setup than MIXC’s straightforward trays. It is listed for indoor use only, so it is not the pick for greenhouse benches exposed to outdoor conditions.
Pros:- Capillary mat and base help maintain more consistent moisture.
- Adjustable LED brightness and timer controls support changing seedling needs.
- Two adjustable vents and drainage holes provide airflow and water management.
- Includes plant labels, a support stand, and two gardening tools.
Cons:- The 60-cell capacity is lower than BlumWay’s 80 and far below Mr. Pen’s 400.
- Indoor-only use limits suitability for outdoor greenhouse conditions.
- Grow lights and included accessories require more setup and space than a basic tray kit.
Best for: Indoor seed starters who want less frequent watering checks and adjustable lighting in one coordinated kit.
Not ideal for: High-volume growers, outdoor greenhouse users, or anyone seeking a simple tray that needs no electrical setup.
- Model:SWSST-L60
- Cell count:60
- Material:BPA-free PET
- Grow lights:2 LED strips with 56 beads per tray
- Lighting controls:Adjustable brightness and timer
- Dome height and thickness:4.07 in; 1.5 mm
- Dimensions:11 x 16.6 x 7.28 in
- Included components:Humidity dome, 2 vents, 60-cell tray, base tray, capillary mat, support stand, grow light system, plant box, 2 power cords, 20 plant labels, 2 gardening tools
- Usage:Indoor
Our verdict“Choose Patigrow for a 60-cell indoor setup that combines watering support and adjustable lighting, not for large-scale or outdoor propagation.”
MIXC 5 Pack Seed Starter Tray, 200-Cell Mini Propagator Greenhouse Grow Kit
For gardeners who want to start many small seeds at once, the MIXC five-tray kit offers 200 cells across stackable trays, giving it far more capacity than the 36-cell Jiffy Windowsill Greenhouse Kit. Adjustable humidity domes let you manage moisture and temperature as seedlings emerge, while transparent trays make it easier to check progress without disturbing them. The included labels, tools, and drainage system also make this a more complete setup than the simpler Jiffy kit. The tradeoff is cell size: at 1.5 × 1.5 × 2 inches, the cells suit smaller seeds and early starts, not seedlings that need substantial root room. Its plastic construction may also be less durable than sturdier alternatives. I’d choose it for volume and organization, not for large plants or long-term reuse under heavy handling.
Pros:- Five trays provide 200 cells for starting many seeds in one batch.
- Adjustable humidity domes help manage moisture and temperature.
- Transparent trays make it easier to monitor seedlings without disturbing them.
- Stackable design and included tools, labels, and drainage features support an organized setup.
Cons:- Small cells limit suitability to seeds and seedlings that do not need much root space.
- Plastic construction may be less durable than more robust materials.
- The high cell count can be excessive for gardeners with only a few plants to start.
Best for: Gardeners starting many small flower, herb, or vegetable seeds who need stackable trays and basic accessories.
Not ideal for: Growers raising large-seeded plants or keeping seedlings in their cells for an extended period, because the cells are small.
- Cell count:200 total across five trays
- Cell size:1.5 × 1.5 × 2 inches
- Dome height:2.75 inches
- Product dimensions:14.6 × 9.84 × 5.1 inches
- Material:Plastic
- Color:Green
- Item weight:1187 g
Our verdict“Choose the MIXC kit when high capacity and compact storage matter more than generous root space or heavy-duty construction.”
Seed Starter Tray Kit with Grow Lights and Heat Mat, 36 Cells
This kit is the most self-contained indoor option in this group: it pairs a 36-cell tray with grow lights, a heating mat, and a four-setting controller. That combination can help gardeners manage both light and warmth without assembling separate equipment, unlike the Bonviee five-tray kits, which include lights but no heat mat or timer. The smaller cell count makes sense for a focused batch of seedlings or a limited indoor growing area, rather than a large sowing schedule. Its waterproof, wipe-clean mat is practical around watering, but it is intended for indoor use and must not be immersed. The supplied details do not specify light output or tray dimensions, so buyers cannot easily judge coverage against a particular shelf or growing space. I’d favor it for convenience, while larger-scale starters may prefer more cells.
Pros:- Combines a seed tray, grow lights, heating mat, and controller in one kit.
- Four timer settings offer more control than the Bonviee lighted trays, which have no built-in timer.
- Waterproof mat surface can be wiped clean after routine spills.
- Includes humidity domes, labels, and tools alongside the growing equipment.
Cons:- The 36-cell capacity is lower than the 60-cell Bonviee kits and the 200-cell MIXC set.
- Heating mat is intended for indoor use and must not be immersed in water.
- The supplied product details do not give light output or tray dimensions for planning shelf coverage.
Best for: Indoor gardeners who want a compact starter set with lighting, bottom heat, and basic timer control in one purchase.
Not ideal for: Gardeners starting a large number of plants or looking for outdoor heating, since the kit has 36 cells and the mat is for indoor use.
- Cell count:36
- Timer settings:Four
- Heating mat:Far-infrared heating technology
- Mat water resistance:IP67-rated surface; do not immerse
- Included components:Heat mat, seed tray, grow lights, controller, humidity domes, plant labels, and tools
- Recommended use:Indoor
Our verdict“Pick this kit for a compact indoor growing station where included heat and light matter more than high seed capacity.”
Jiffy 36 mm Windowsill Greenhouse Kit, 2 Pack
The Jiffy kit takes a simpler route than the powered Bonviee trays: it supplies biodegradable peat pellets, a watertight base, and a clear humidity dome, with no grow lights or heating mat to set up. Add water and seeds, and the pellets expand to give roots a starting medium that can stay around them during transplanting. That makes this a good fit for a windowsill gardener who wants a straightforward start for flowers, herbs, or vegetables rather than a more involved greenhouse station. The tradeoff is limited capacity: the two-pack includes 12 pellets, well below the MIXC kit’s 200 cells or Bonviee’s 60. Seeds are not included, and the product details do not list any lighting or temperature controls. I’d choose it for simplicity and transplant-friendly pellets, not for large sowing batches or low-light spaces.
Pros:- Includes peat pellets, a watertight base tray, and a clear humidity dome.
- Biodegradable pellets expand to provide a growing medium for roots.
- Pellets can help keep roots together during transplanting.
- Simple indoor setup suits small windowsill batches.
Cons:- Only 12 peat pellets are included across the two-pack.
- Seeds are not included.
- No grow lights or heating equipment are listed.
Best for: Beginners starting a small number of flowers, herbs, or vegetables on a bright indoor windowsill.
Not ideal for: Gardeners who need many planting spaces, included seeds, or supplemental lighting and heat for a dim growing area.
- Pack count:2 kits
- Peat pellets:12
- Pellet size:36 mm
- Pellet material:100% biodegradable peat
- Tray:Watertight base tray
- Dome:Clear plastic humidity dome
- Usage:Indoor
Our verdict“Choose Jiffy for a small, low-complexity windowsill start with peat pellets, but opt for a larger tray kit for more seedlings or added lighting.”
Bonviee Seed Starter Trays with LED Grow Lights, Green, 5-Pack
Bonviee’s five separate trays suit growers who want to spread seedlings across a shelf or windowsill rather than manage one large propagator. Each tray has 12 cells, its own 12-LED grow light, and a vented humidity dome, for 60 planting spaces in total. Compared with the Jiffy windowsill kit, this adds light and more capacity; compared with the other Bonviee five-pack in this lineup, it has the same basic light-and-cell arrangement but a different listed tray size and weight. Clear inserts and drainage holes support moisture checks and bottom watering. The main catch is power: the USB splitter is included, but the required 5V/2A adapter is not. The product details also do not list a timer, so light management requires an external routine or controller. I’d pick it for modular indoor use, not a ready-to-plug-in automated setup.
Pros:- Five trays provide 60 cells that can be arranged separately.
- Each tray includes a 12-LED grow light and vented humidity dome.
- Drainage holes support bottom watering.
- Clear inserts help monitor moisture and root growth.
Cons:- A 5V/2A power adapter is required but not included.
- No built-in timer is listed, so light scheduling is not automated.
- Plastic PET and PP construction may be less durable than sturdier materials.
Best for: Indoor growers who want several individually domed, lighted trays to place across a shelf or windowsill.
Not ideal for: Buyers who want a complete powered setup in the box, since a compatible USB adapter is required but not included.
- Tray quantity:5
- Planting cells:60 total; 12 per tray
- Grow lights:12 LEDs per tray
- Dimensions:5.5 × 7.25 × 4.4 inches
- Material:PET and PP
- Power:USB; requires a 5V/2A adapter, not included
- Included components:Five cell trays, five base trays, five domes, five grow lights, one-to-five USB cable, and 10 labels
Our verdict“Choose this Bonviee set for modular trays with individual lights, provided you already have or can supply the required USB adapter.”
Bonviee Seed Starter Trays with 12-LED Grow Lights, 5 Pack
This Bonviee version is a practical choice for indoor seed starters who want 60 cells, individual 12-LED lights, vented domes, and clear trays in five separate units. The transparent setup helps make moisture and root checks easier, while drainage holes give growers another way to manage watering. Like the other Bonviee five-pack, it is more ready for low-light indoor starting than the Jiffy windowsill kit, but it does not include the heat mat and controller found in the 36-cell all-in-one kit. It also lacks a built-in timer, and the required 5V/2A adapter is not supplied; the included USB cable connects the lights but does not power them by itself. I’d choose this for visual monitoring and modular placement, with the understanding that lighting control and heat remain the buyer’s responsibility.
Pros:- Five trays provide 60 planting cells.
- Each tray has a 12-LED full-spectrum grow light and vented humidity dome.
- Clear trays and drainage holes support root checks and water management.
- Included one-to-five USB cable connects the tray lights.
Cons:- The required 5V/2A power adapter is not included.
- No built-in timer is listed, so lights need manual scheduling or a separate timer.
- The kit does not include a heating mat.
Best for: Indoor gardeners who want multiple clear, lighted trays and easy visibility of moisture and root development.
Not ideal for: Growers who need included heat, automated light timing, or a complete power setup without buying an adapter separately.
- Pack count:5 trays
- Total cells:60
- Grow lights:12 LEDs per tray
- Cable:One-to-five USB cable included
- Power adapter:5V/2A required; not included
- Timer:Not built in
- Dimensions:5.7 × 8.5 × 5.5 inches
- Material:PET and PP
Our verdict“Choose this Bonviee kit for clear, individually lighted indoor trays, but look elsewhere if you need built-in heat or timer control.”
SOLIGT 60-Cell Seed Starter Tray Kit with Grow Light and Heat Mat
The SOLIGT 60-cell kit is the most self-contained choice here for starting seeds indoors: it combines a heat mat, adjustable humidity dome, reusable cells, and a grow light, so there are fewer separate pieces to source. Its three-head gooseneck light can be aimed across the tray, while brightness and timer settings let growers tailor the setup as seedlings develop. Compared with the Burpee 72-Cell Kit, SOLIGT brings its own light and heat mat but has less capacity and no included planting diagrams or markers. The tradeoff is that its 11.5 W light and indoor-only design suit a compact home setup better than a greenhouse bench or a large production run. The 1.5-inch cells also leave less room for seedlings that need a longer stay before transplanting.
Pros:- Includes a tray, adjustable dome, waterproof heat mat, and grow light
- Three flexible light heads, five brightness levels, and four timer settings allow positioning and scheduling
- Drainage holes support water flow through reusable cells
- Adjustable dome vents give growers control over humidity
Cons:- Designed for indoor use rather than an outdoor greenhouse setup
- The 11.5 W light may be limiting for demanding or larger-scale seedling growth
- Sixty cells offer less capacity than the Burpee 72-cell kit
Best for: Indoor gardeners who want one coordinated kit with heat, humidity control, and adjustable lighting for up to 60 starts
Not ideal for: Greenhouse growers seeking a high-capacity tray, or anyone who needs stronger lighting for a broad growing area
- Brand:SOLIGT
- Cell count:60
- Grow light:11.5 W, 4500 K; 15 red and 111 white LEDs
- Light controls:5 brightness levels; 4 timer settings: 4, 8, 12, or 18 hours
- Heat mat:Waterproof
- Humidity dome height:4.3 inches
- Cell dimensions:1.5 × 1.5 × 2.3 inches
- Product dimensions:16.7 × 10.7 × 7 inches
Our verdict“Choose SOLIGT if you want a compact indoor seed-starting system with heat and light included, and do not need more than 60 cells.”
Halatool Seed Starter Tray Kit with Peat Pellets, 48 Cells, Black
Halatool’s advantage is its four separate 12-cell trays: I can start different varieties in smaller batches, move them independently, or reserve trays for cuttings. The kit includes bases, humidity domes, and 50 peat pellets, making it a more ready-to-plant package than basic tray sets. It also works indoors or outdoors, unlike the indoor-only SOLIGT 60-cell kit, though Halatool supplies no grow light or heat mat. That makes it better for growers who already have a suitable location and want modular trays, not a complete controlled setup. The pellet medium expands with warm water, but its non-woven netting may need cutting before transplanting to prevent it from constraining roots. Its 48-cell total is also the smallest capacity among these three picks.
Pros:- Four independent 12-cell trays make separate batches easier to manage
- Includes bases, humidity domes, and 50 peat pellets
- Indoor and outdoor use offers more placement flexibility than the SOLIGT kit
- Drainage holes and reusable plastic trays support repeated starts
Cons:- No grow light or heat mat is included
- Peat pellet netting may need to be cut away during transplanting
- Forty-eight cells provide less capacity than either SOLIGT or Burpee
Best for: Gardeners starting several seed varieties or cuttings in small, movable batches, with access to suitable indoor or outdoor light and warmth
Not ideal for: New growers who want built-in heat or lighting, or gardeners who need a large number of seedling cells
- Brand:Halatool
- Tray cells:48 total across 4 trays
- Included components:4 base trays, 4 seed trays, 4 humidity domes, and 50 peat pellets
- Material:Plastic trays; peat pellets with degradable non-woven fabric
- Dimensions:5 × 8 × 7 inches
- Weight:1.3 pounds
- Use:Indoor and outdoor
- Features:Drainage holes, breathable design, and humidity control
Our verdict“Pick Halatool for modular, small-batch starts with pellets included, provided you can supply appropriate warmth and light yourself.”
Burpee 72-Cell Seed Starting Kit with Greenhouse Dome and Coir Pellets
For growers who want to start many varieties at once, the Burpee 72-cell kit offers the largest capacity of these three options and includes a water reservoir, coir pellets, planting diagrams, and markers. That combination helps keep a crowded seed-starting session organized, while the 10 × 20-inch tray fits a larger growing footprint than the compact SOLIGT setup. Unlike SOLIGT, however, Burpee includes neither a heat mat nor a grow light; its dome and reservoir help manage moisture, but warmth and post-emergence lighting must come from elsewhere. Halatool is more modular, with four separate trays, while Burpee keeps all 72 starts in one tray system. This is a practical choice for planned batches, but less flexible if you need to move only a few varieties or want an all-in-one indoor kit.
Pros:- Capacity for up to 72 seedlings, more than the SOLIGT and Halatool kits
- Includes 72 coir pellets, a water reservoir tray, and a dome
- Planting diagrams and six markers help keep varieties identified
- Two 36-cell trays provide a defined layout for organizing a large batch
Cons:- No heat mat is included, and added warmth may be needed for germination
- Requires a grow light or a well-lit window after seedlings emerge
- The 10 × 20-inch footprint takes more space than the smaller SOLIGT setup
Best for: Gardeners starting a broad selection of herbs, vegetables, or flowers who want 72 labeled starts on one tray
Not ideal for: Growers with limited bench or windowsill space, or beginners who need included heat and grow lighting
- Brand:Burpee
- Model:94062
- Capacity:72 seedlings
- Cell dimensions:1.5 × 1.5 × 2 inches
- Tray dimensions:10 × 20 × 5 inches
- Included components:Two 36-cell trays, water reservoir tray, 72 coir pellets, dome cover, two planting diagrams, and six 4-inch plant markers
- Item weight:1.6 pounds
- Material:Coconut coir pellets
Our verdict“Choose Burpee for organized, high-capacity seed starting if you have the space and can provide warmth and light separately.”
How We Picked
I compared these greenhouse seed starting kits by how well their components address the work of starting seeds indoors: protecting moisture, holding seedlings, and providing any included light, heat, or growing medium. I also weighed stated cell capacity against likely use; a large count can be useful for a big sowing, but it does not replace adequate space, light, or a practical watering routine. Kits with a clear all-in-one advantage earn a different place from simple trays that make sense for growers who already own the other supplies.
The ranking reflects usefulness for the stated buyer need, not cell count alone. I favored options that pair useful capacity with meaningful included support, then separated high-capacity tray bundles, compact windowsill sets, and pellet-based starter kits by the growers they serve. Since the listed product details do not establish dimensions, light output, tray durability, or replacement-part availability, I avoid treating those as proven advantages; buyers should check them before ordering. Every pick has a tradeoff, especially around footprint, included equipment, and how much setup remains.
Factors to Consider When Choosing Greenhouse Seed Starting Kits
Before choosing among greenhouse seed starting kits, decide what is missing from your current setup. A dome can help manage moisture, but it cannot make up for weak light or the wrong temperature. These factors can help you judge whether a bundled kit saves work or simply adds components you do not need.
Match Cell Count to Your Sowing Plan
Count the varieties and likely seedlings you plan to raise, not just the number printed on the package. A high-capacity kit such as the 400-cell Mr. Pen set can suit large sowings, but many small cells may be a poor fit if you want to keep plants in their starter containers for a long time. Fewer, roomier cells can make watering and early growth easier to manage, though they reduce the number of starts per tray. It is easy to sow more seeds than your indoor space can support once they need stronger light and airflow. Leave room for germination losses, thinning, and the next stage of potting rather than filling every cell by default. If the listing omits cell dimensions, check them before deciding that a larger cell count means better capacity for your plants.
Treat Lights and Heat as Separate Needs
Bundled grow lights and heat mats can reduce the number of separate purchases, but they address different parts of seed starting. Heat supports germination for seeds that need warm conditions; light is needed once seedlings emerge and begin growing. A kit with both can be useful where the room is cool and natural light is limited, but it may cost you space and create more equipment to manage. Check whether a light’s position and coverage suit the tray, and whether the mat has a suitable size and temperature control. Do not assume that a light included in a kit replaces every lighting need for every crop. If you already have a bright growing area or a separate seedling light, a simpler covered tray may be the more practical choice.
Choose a Dome That Fits Your Watering Routine
A humidity dome can slow moisture loss during germination, which may help when you cannot check trays often. It also means moisture can build up, so seedlings still need observation and appropriate ventilation as they grow. A covered greenhouse tray is not a set-and-forget system: standing water and persistently wet growing media can create problems. Think about how easily you can remove or vent the cover and reach the cells for watering. Self-watering designs may reduce frequent top-ups, but they still need monitoring and are not a substitute for checking plant condition. If your growing area is already humid or you prefer close control, a kit with a removable cover may suit you better than relying on a sealed environment.
Decide Whether Pellets Are Convenience or a Constraint
Peat and coir pellets bundle the growing medium with the tray, making it easier to start without sourcing separate mix. They can also simplify handling at transplant time, although pellet size and composition may not suit every seed or growing method. A tray-only kit gives you more control over the medium, cell fill, and how you prepare each variety, but requires extra supplies and setup. Check what the kit includes rather than assuming a tray comes with pellets, labels, or a watering base. Consider how you plan to transplant: a contained pellet may be convenient, while loose media can offer more flexibility in how roots develop. Choose the bundled option for fewer initial decisions, or a plain tray if customization matters more.
Measure Your Growing Area Before Buying
Tray count and cell count do not tell you whether a kit will fit on a windowsill, shelf, or under a light. A multi-pack can spread across several locations, while a tray with built-in lighting or a heat mat may need a dedicated outlet and more vertical clearance. Measure the usable area, including room to lift a dome and access the water reservoir or base. Also consider where runoff will go; a stable base can matter as much as the cells when trays sit on furniture. If you plan to start seedlings in stages, a compact kit may be easier to rotate and monitor than a large batch. Verify the assembled dimensions in the product listing before committing shelf space.
Balance Reuse, Storage, and Replacement Needs
Some buyers want a tray they can store and reuse across seasons, while others value a simple kit they can set up quickly and replace when needed. The product names alone do not establish how long a tray or dome will last, so inspect material details and care guidance instead of assuming that a greenhouse-style cover is durable. Reusable equipment is only useful if it can be cleaned, dried, and stored without taking over your growing space. A multi-pack may help with staged sowing, but unused trays still need somewhere to go. Check whether cells, bases, lights, or other parts are sold separately if a component fails. This is especially relevant for bundled kits: convenience can come with more parts to store and maintain.
Frequently Asked Questions
Do I need a greenhouse seed starting kit with grow lights?
Not always. If seedlings will sit in a reliably bright spot or you already own a suitable light, a basic dome-and-tray kit may be enough. Natural window light can vary by season and direction, so consider whether seedlings might become leggy before relying on a windowsill alone. Bundled-light options such as the BlumWay, Patigrow, and Bonviee kits reduce the need to source a separate light, but check the listing for coverage and positioning details. Choose based on your actual growing area rather than the presence of a light in the package.
Should I choose a kit with a heat mat or one with a grow light?
Choose according to the condition your setup lacks: heat mats warm the growing area for germination, while grow lights support seedlings after they emerge. If your room is cool and naturally bright, heat may be the more useful addition; if it is warm but dim, light deserves priority. A kit that includes both can help when you lack either, but it adds equipment and requires more room and setup. The SOLIGT and 36-cell heat-and-light kit address both needs, though the right choice still depends on the tray’s footprint and the equipment details in the listing. Neither feature makes the other unnecessary for every seed or room.
Is a 400-cell seed starter kit a better choice than a smaller kit?
A 400-cell kit is useful if you plan to sow many seeds and have room to care for the resulting seedlings. It can be excessive for a small garden, where unused cells and crowded trays may create more work than value. Compare the cell dimensions as well as the total count; a large number of small cells may require earlier transplanting. Also account for space under lights and room to pot up seedlings, not just the area needed for sowing. For a modest number of plants, a smaller kit may be easier to water, label, and monitor.
Are peat or coir pellet kits a good choice for first-time seed starters?
Pellet kits can make the first setup simpler by pairing a tray with pre-portioned growing media. That reduces the need to choose a separate seed-starting mix, but it does not remove the need to manage moisture, light, and temperature. Check whether the included pellets suit the seeds you plan to grow and whether you can add more media later. Jiffy and Burpee offer pellet-based formats in this lineup, while tray kits without pellets leave the medium choice to you. Beginners who value fewer setup decisions may prefer pellets; gardeners who want more control may prefer filling cells themselves.
Can I reuse a greenhouse seed starting kit for another season?
Reuse depends on the materials, cleaning instructions, and condition of the parts after use; a product name alone does not confirm how many seasons it will last. Wash and dry reusable trays and domes between sowings, and check for cracks, warped bases, or blocked drainage before starting again. If a kit includes lights, wiring, or a heat mat, inspect those components according to the manufacturer’s care guidance. Pellet-based media is generally part of the growing setup rather than a reason to reuse the same growing medium. Before buying a multi-part kit, check whether individual components can be replaced if one is damaged.
Conclusion
For most growers who want a balanced all-in-one setup, I’d choose the BlumWay 80-cell kit as the best overall: its dome and included grow light pair useful capacity with support for indoor starts. The Mr. Pen 400-cell kit is my value pick for large sowings when you already have lighting and want many cells, while the BlumWay also makes the most sense for beginners who prefer a light included rather than assembling every component separately. For a premium-style setup focused on both warmth and light, compare the SOLIGT 60-cell kit with the 36-cell heat-mat kit, checking listed dimensions and equipment details first. Choose Jiffy’s windowsill kit for a compact, low-fuss start, or the Burpee coir-pellet kit if bundled growing medium is your priority. The right greenhouse seed starting kit is the one that fits your planting volume and solves the actual gap in your growing space.
