Oyster Shell, 5-lbs.

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