Wonder Soil's IGrow Window Box comes with 36 transplantable spruce cells, each of which contains several wafers of Expanding Potting Soil. The IGrow system is easy to use and extremely flexible. Cells can be separated into any configuration when transplanted to create custom landscape designs. Promotes healthier plants with no risk of root shock. 100% biodegradable.
|How it Works||1. Fill cells with water 2. Stir soil after wafer expands 3. Plant seeds according to directions 4. When seedlings are 3 inches high, cut cells into custom design for your garden|