Deepot Cells are durable, reusable containers for growing deep-rooted seedlings, hardwoods, and young trees. Their extended depth guides roots straight down to prevent circling and improve transplant success, with eight interior vertical ribs and a slightly tapered shape for strong root architecture. At a glance Dimensions: 2.5 inch diameter top x 10 inches deep (slightly tapered) Material: High-density polypropylene Root care: 8 interior vertical ribs prevent spiraling Reusable: Built to last season after season Compatibility: Fits Deepot Support Trays Best for Deep-rooted trees, hardwoods, and native plants Orchards and reforestation projects Plant material needing a deeper root ball Organic and sustainable propagation How to use Set the cells into a Deepot Support Tray for stability, then fill with a well-draining mix, sow seeds or insert cuttings, and water. As roots grow down along the ribbed sides, they are trained straight and air-pruned at the open base for a strong root system. Spread cells out for fuller growth or consolidate them to save space. Slide seedlings out by the cell for low-shock transplanting. About Grow Organic Grow Organic, also known as Peaceful Valley, has supplied seeds, tools, and growing supplies to organic gardeners and farmers since 1976.