This is a 30 pack of our patented, poly, food-safe, non-porous Mesh Reusable Growing Medium. Insert this Mesh into your 10x20 Tray and sow your seeds right on top. This Medium allows you to eliminate the expense of soil or coco coir, fights mold and bacterial growth and keeps your product clean, which is what restaurants and caterers love best. Size 4 is designed for:
Broccoli
Kale
Mustard
Cilantro
Beets
Fenugreek
Onion
Collards
Radish
and similar sized seeds