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)

81 Products

Sort By:

6-Cell Tray Inserts – 6 Count Cell Flats

Quick Shop

Trays, Domes & Flats

6-Cell Tray Inserts – 6 Count

Lightweight Deep Trays – 100 Count

Polypro 5x5 Insert Pots – Red, 24 Count

Polypro Mesh Deep Tray, Black – 24 Count

Paperpot Seedling Trays – 10 Count

Paperpot Transplanter Accessory

20-Row Seed Flats – 50 Count

7" Clear Propagation Domes – 25 Count

SureRoots® 50-Cell Deep Plug Flats – 25 Count

Pro-Tray 38 Cell Flats – 100 Count

Paperpot Seedling Tray – Individual

Paperpot Transplanter Accessory

NanoDome – 25 Count

LED or T5HO Strip Light Accessory

50 Cell Plug Flats – 100 Count