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

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 heavy-duty enough to be reusable over multiple seasons, including: germination trays with and without drainage holes; microgreens trays; 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).

Seed-Starting Flats, Trays, Domes & Pots | Comparison Chart (PDF)

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6-Cell Tray Inserts – 24 Count Cell Flats

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Trays, Domes & Flats

6-Cell Tray Inserts – 24 Count

Polypro Endurance Deep Tray (No Holes), Blue – 4 Count

128 Cell Plug Flats – 5 Count

Polypro Endurance Deep Tray (No Holes), Black – 4 Count

50 Cell Plug Flats – 100 Count

Polypro Shallow Tray (With Holes), Black – 4 Count

Polypro Shallow Tray (With Holes), Multi – 6 Count

Jumbo Plug Inserts – 5 Count

6-Cell Tray Inserts – 6 Count

SureRoots® 50-Cell Deep Plug Flats – 5 Count

Medium Weight Mesh Tray – 5 Count

Heavyweight Mesh Tray – 5 Count

Lightweight Shallow Trays – 36 Count

Heavyweight Mesh Tray – 50 Count

20-Row Seed Flats – 5 Count

72 Cell Plug Flats – 100 Count

200 Cell Plug Flats – 5 Count

Polypro Endurance Deep Tray (No Holes), Red – 24 Count

128 Cell Plug Flats – 50 Count

7" Clear Propagation Domes – 5 Count

Pro-Tray 72 Cell Flats – 5 Count

Polypro Endurance Deep Tray (No Holes), Blue – 24 Count

Medium Weight Mesh Tray – 50 Count

Polypro Shallow Tray (With Holes), Black – 24 Count

Polypro Mesh Shallow Tray, Black – 4 Count

Polypro Endurance Deep Tray (No Holes), Red – 4 Count

Lightweight Deep Trays (with Holes) – 100 Count

20-Row Seed Flats – 50 Count

Polypro Shallow Tray (No Holes), Black – 4 Count

200 Cell Plug Flats – 50 Count

Pro-Tray 24 Cell Flats – 5 Count

Jumbo Plug Inserts – 100 Count

Polypro Endurance Deep Tray (No Holes), Black – 24 Count

SureRoots® 50-Cell Deep Plug Flats – 25 Count

Lightweight Deep Trays – 100 Count

5x5 Inserts – 100 Count

Microgreens Accessory