Seed Starting Flats, Trays, Domes & Pots—Comparison Chart

Seedling Flats & Trays Comparison
Product Name Recommended Crops Cell Size
20-Row Seed Flats—Save space by starting seeds in one flat and transplanting into cell trays after germination.
20-Row Crops that take longer to germinate and grow (e.g., peppers, eggplant, perennial herbs, lisianthus) 9 ¾” L x ⅞” W x 1 ¼” D
SureRoots® Deep Plug Flats—Promotes deeper root development.
SureRoots® 50-Cell Sweet Peas, Asparagus, Perennials, and crops with a taproot or that are sensitive to root disturbance 2” Square x 5” D
Plug Flats—The standard compact design for efficiently growing seedlings.
50-Cell Artichokes, Cucumbers, Melons, Ornamental Grasses, Peppers, Squash, Tomatoes 1 ⅞” Square x 2 ⅜” D
72-Cell Basil, Broccoli, Cabbage, Flowers, Herbs, Kale, Swiss Chard 1 ½” Square x 2 ¼” D
128-Cell Chicory, Delphinium, Fennel, Lettuce, Lisianthus, Onions, Shallots, Stock 1 ⅛” Square x 1 ⅞” D
200-Cell Flowers and Herbs (small–seeded, e.g., Alyssum and Chamomile) 1 3⁄16” Square x 1 ⅜” D
Jumbo Plug Inserts—Separates into 6-packs for seedling sales.
6-Packs Tomatoes, Peppers, Broccoli, Kale, Lettuce, Greens (for bunching), Flowers, Herbs 2” L x 2 ¼” W x 3 ¼” D
*HR: High Resistance; IR: Intermediate Resistance