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)

85 Products

Sort By:

200 Cell Plug Flats – 5 Count Cell Flats

Quick Shop

Trays, Domes & Flats

200 Cell Plug Flats – 5 Count

Pro-Tray 24 Cell Flats – 5 Count

Pro-Tray 38 Cell Flats – 5 Count

Lightweight Shallow Trays (with Holes) – 5 Count

Polypro Mesh Deep Tray, Black – 4 Count

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

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

Paperpot Seedling Trays – 10 Count

Paperpot Transplanter Accessory

Polypro 2.5" Insert Pots – Red, 32 Count

Pro-Tray 72 Cell Flats – 5 Count

Soil Block Propagation Trays – 50 Count

Polypro Mesh Shallow Tray, Black – 4 Count

6-Cell Tray Inserts – 6 Count

Polypro 2.5" Insert Pots – Blue, 32 Count

Polypro 5x5 Insert Pots – Black, 24 Count

NanoDome – 5 Count

LED or T5HO Strip Light Accessory

NanoDome – Single

LED or T5HO Strip Light Accessory

Lightweight Deep Trays – 100 Count