Down to Earth Oyster Shell is a one pound box of all natural fertilizer and is listed by the Organic Materials Review Institute (OMRI) for use in organic production
All-natural and high-quality source of the essential plant nutrient calcium, helping prevent calcium deficiencies that can dimish plant development
Ancient oyster shells are carefully harvested and then ground into small, medium and coarse particles, providing a sustained release of this valuable nutrient
With 35% calcium, Oyster Shell is great for use on lawns, outdoor containers, vegetable gardens, flower beds, trees, shrubs and row crops/acreage
Calcium is very important to the biological processes of growing plants and aids in improving structure of soils and building optimum tilth
