Espoma Bio-tone Starter Plus Natural Plant Food 4lb Catalog Home & Garden Lawn & Plant Food Plant Espoma Bio-tone Starter Plus Natural Plant Food 4lb UPC : 000000000000 SKU : 10206504 Description All natural organic plant food with humates, beneficial bacteria, and mycorrhizae. Helps prevent transplant loss, stimulates root growth, promotes bigger blooms, helps plants establish fast and improves soil structure. Rates Please contact us for current pricing and availability.