Wonder Soil IGrow Seed Starter
36 Plantable Cells with Expanding Seed Starting Mix.
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.