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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Heavyweight Mesh Tray – 50 Count Support Trays

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Trays, Domes & Flats

Heavyweight Mesh Tray – 50 Count

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

5x5 Inserts – 100 Count

Microgreens Accessory

Polypro 5x5 Insert Pots – Blue, 8 Count

Jumbo Plug Inserts – 100 Count

Lightweight Shallow Trays (with Holes) – 100 Count

2" Clear Acrylic Domes – 50 Count

20-Row Seed Flats – 50 Count

Medium Weight Mesh Tray – 50 Count

7" Clear Propagation Domes – 25 Count

50 Cell Plug Flats – 100 Count

Pro-Tray 38 Cell Flats – 100 Count

Polypro Mesh Shallow Tray, Black – 24 Count

Polypro 2.5" Insert Pots – Blue, 8 Count

Pro-Tray 24 Cell Flats – 100 Count

Polypro 2.5" Insert Pots – Black, 8 Count

Lightweight Deep Trays (with Holes) – 100 Count

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