Certified Organic Ready-Made Soil Blocking Mix*
- Certified Organic and made for soil blocking.
- It binds and holds together to make strong blocks unlike most other seed starting mixes.
- Has the natural supplements needed to get your seeds off to a great start.
- Each 7.5 quarts makes 400-500 small 3/4″ blocks or 25 large 2″ blocks.
- Each 22.5 quarts makes 1200-1500 small 3/4″ blocks or 75 large 2″ blocks.
- *Additional shipping per 7.5 quart bag: Zone A add $2.95, Zone B add $5.95. Flat rate shipping per 22.5 quart bag: $19.00.