Allgood Farm Mycorrhizal Fungi Root Booster. Allgood Farm Mycorrhizal Fungi Root Booster is a natural root enhancer which stimulates plants and trees to grow a strong secondary root system. Allgood Farm Mycorrhizal Fungi contains both Endomycorrhizae and Ectomycorrhizae, making it suitable for most herbaceous plants, including vegetables, houseplants, and fruiting plants, as well as woody trees and shrubs, such as pines, oaks, and birches.
eBay