From the cell trays, seedlings are transplanted into 1 gallon root pruning containers for the next 8-10 weeks and finally transplanted into 3, 5, ,or 7 gallon root pruning containers or planted directly into the field in 12" or 18" root control bags.
Iowa Native Trees and Shrubs specializes in propagating and growing native plants from locally collected seed. Plants are grown in a patented system of root pruning containers to produce an extremely fibrous root system that ensures a healthy and vigorous plant ready to be successfully transplanted.
In early March, seeds are germinated in the greenhouse, fertilized, and irrigated for 8 to 10 weeks. Patented air-root-pruning cell trays maximize the number of roots and the development of the root system, establishing a strong foundation for top growth.