Seed Starting Trays, Domes & Flats | Johnny's Selected Seeds

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Johnny's offers a selection of seed starting trays, flats, and humidity domes to accommodate whatever it is you decide to grow. All of our seedling products follow industry 1020 tray standard size (actual footprint: 11" x 21"). We offer supplies that are economical enough to be disposable, but are durable enough to be reusable over multiple seasons, including: germination trays with and without drainage holes; mesh trays; cell flats; and clear plastic domes. Available in small and case quantities. To compare products, including compatibility across products, see our Trays, Domes & Flats Comparison Chart (at right).

Trays, Domes & Flats | Dynamic Comparison Chart

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Heavyweight Mesh Tray – 50 Count Trays, Domes, and Flats

Heavyweight Mesh Tray – 50 Count

Heavy duty support for other seedling containers.

Heavy duty support for other seedling containers.

5 1/2" Hard Plastic Humidity Dome – 1 Count Trays, Domes, and Flats

5 1/2" Hard Plastic Humidity Dome – 1 Count

Perma-Nest Tray Accessory

Rests on top of Perma-Nest trays.

Rests on top of Perma-Nest trays.

50 Cell Plug Flats – 100 Count Trays, Domes, and Flats

50 Cell Plug Flats – 100 Count

Designed for fresh market growers. Square cells.

Designed for fresh market growers. Square cells.

Jumbo Square Plastic Pots – 200 Count Containers

Jumbo Square Plastic Pots – 200 Count

For very large seedlings such as squash and pumpkins.

For very large seedlings such as squash and pumpkins.

Johnny's Exclusive

2" Clear Acrylic Domes – 50 Count Trays, Domes, and Flats

2" Clear Acrylic Domes – 50 Count

Holds moisture and warmth for germination.

Holds moisture and warmth for germination.

Mini Square Plastic Pots – 540 Count Containers

Mini Square Plastic Pots – 540 Count

For big stocky transplants.

For big stocky transplants.

20-Row Seed Flats – 50 Count Trays, Domes, and Flats

20-Row Seed Flats – 50 Count

Ideal for seed starting.

Ideal for seed starting.

Jumbo Plug Flats – 100 Count Trays, Domes, and Flats

Jumbo Plug Flats – 100 Count

Large cells can be separated into six-packs.

Large cells can be separated into six-packs.

Hard Plastic Perma-Nest Trays – 24 Count Trays, Domes, and Flats

Hard Plastic Perma-Nest Trays – 24 Count

Heavy-duty, leak-proof trays. Great for bottom-watering. Case of 24.

Great for bottom-watering, these are the trays that come with our Seedling Light Carts.

7" Clear Propagation Domes – 25 Count Trays, Domes, and Flats

7" Clear Propagation Domes – 25 Count

Create the perfect healing chamber for grafted tomatoes.

Create the perfect healing chamber for grafted tomatoes.

Pro-Tray 24 Cell Flats – 100 Count Trays, Domes, and Flats

Pro-Tray 24 Cell Flats – 100 Count

For home and market gardeners. Round cells.

For home and market gardeners. Round cells.

3" Humidity Dome – 24 Count Trays, Domes, and Flats

3" Humidity Dome – 24 Count

Perma-Nest Tray Accessory

Rests on top of Perma-Nest trays.

Rests on top of Perma-Nest trays.

Pro-Tray 38 Cell Flats – 100 Count Trays, Domes, and Flats

Pro-Tray 38 Cell Flats – 100 Count

For home and market gardeners. Round cells.

For home and market gardeners. Round cells.

Medium Weight Mesh Tray – 50 Count Trays, Domes, and Flats

Medium Weight Mesh Tray – 50 Count

Reinforced support for other seedling containers.

Reinforced support for other seedling containers.

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