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

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Trays, Domes & Flats

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

Polypro 2.5" Insert Pots – Blue, 8 Count

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

Jumbo Plug Inserts – 100 Count

Polypro 5x5 Insert Pots – Blue, 24 Count

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

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

SureRoots® 50-Cell Deep Plug Flats – 25 Count

5x5 Inserts – 100 Count

Microgreens Accessory

7" Clear Propagation Domes – 25 Count

2" Clear Acrylic Domes – 50 Count

20-Row Seed Flats – 50 Count

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

Polypro Mesh Shallow Tray, Black – 24 Count

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

NanoDome – 25 Count

LED or T5HO Strip Light Accessory

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

Polypro 5x5 Insert Pots – Red, 24 Count

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