5LB, OYSTER SHELL, an all natural source of calcium ground to a flour of varying particle sizes that ensures sustained release of this essential nutrient. OMRI certified.
- Oyster shell flour
- A high quality soil conditioner which consists of 96% calcium carbonate & many micronutrients
- Provides a long lasting, steady release of nutrients that regulate soil pH, improve nutrient uptake, promote helathy cellular structure & enhance soil tilth
- Helpful in creating more active habitats for soil microbes in compost piles and worm bins
- OMRI listed
- See package for application rates
- 5 lb box