1 sheet of Rockwool for a standard 1020 propagation tray with 14 rows of 7 cubes each (total 98 cubes).
Made from eco-friendly rock fiber, these soilless seed starter cubes provide plant roots with oxygen and consistent moisture, encouraging rapid, healthy growth.
21 rockwool cubes (3 rows) are included with the Tower Garden Growing System.
To order a case of rockwool (30 sheets for $250) from Tower Garden, click here.
Video: How to Start Seeds & Transplant Seedlings
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