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)

69 Products

5x5 Inserts – 5 Count Microgreens Supplies

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Trays, Domes & Flats

5x5 Inserts – 5 Count

Microgreens Accessory

Lightweight Shallow Trays – 36 Count

128 Cell Plug Flats – 50 Count

20-Row Seed Flats – 5 Count

Lightweight Deep Trays (with Holes) – 5 Count

SureRoots 50-Cell Deep Plug Flats – 5 Count

Pro-Tray 24 Cell Flats – 5 Count

6-Cell Tray Inserts – 24 Count

72 Cell Plug Flats – 100 Count

Polypro Mesh Deep Tray, Black – 4 Count

2" Clear Acrylic Domes – 50 Count

Polypro Shallow Tray (No Holes), Black – 24 Count