Grodan Rockwool Starter Mini-Blocks | 2 Blocks - Pack of 24 | + T...

Grodan Rockwool Starter Mini-Blocks | 2" Blocks - Pack of 24 | + Twin Canaries Chart

• Made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs
• Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth
• Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums
• Twin Canaries Chart included with every order!