MycoMinerals Soil Amendment (4 lb bag)The ultimate all in one soil additive. Trace minerals and mycorrhizal fungi spores provide essential mineral elements and add vital biological life to garden soils and potting mixes. Mycorrhizae can help a plant absorb 10 50 times more nutrients a tremendous boost. Apply to all edible or ornamental plants along with very small amounts of slow release fertilizer for maximum performance. A 4 lb bag will treat 200 sq ft garden soil or 8 cubic ft potting