Espoma Organic Greenrock™

Espoma Organic Greenrock™ is a natural, organic rock phosphate that provides a slow-release source of phosphorus and essential trace elements to support strong root development and overall plant health. Ideal for bulbs, flowers, and vegetables, Greenrock™ improves soil fertility over time without the risk of burning. It’s especially beneficial in new garden beds or when preparing soil for long-term plantings. Safe for people, pets, and the planet.