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 Charts

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Trays, Domes & Flats

20-Row Seed Flats – 50 Count

Paperpot Seedling Tray – Individual

Paperpot Transplanter Accessory

Lightweight Shallow Trays (with Holes) – 100 Count

NanoDome – 25 Count

LED or T5HO Strip Light Accessory

50 Cell Plug Flats – 100 Count

Medium Weight Mesh Tray – 50 Count

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

Polypro 2.5" Insert Pots – Blue, 32 Count

Polypro 5x5 Insert Pots – Red, 24 Count

Lightweight Deep Trays (with Holes) – 100 Count

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

Polypro 5x5 Insert Pots – Black, 8 Count