Fertoz - Soft Rock Phosphate 50 lb
Brand change due to supplier availability. Note higher available phosphorus content.
Soft Rock Phosphate is a source of phosphorus and calcium, along with trace elements. Alternative to bone meal. Slow release, good for bloom and fruiting of fruit trees, berries and flowering shrubs. Usually not necessary if your compost is rich in manure. Soil testing is advised before adding any type of phosphate amendment.