Crushed Oyster Shell - 1.5 lb. Tub
Oyster Shell is a natural organic source of calcium and trace minerals for calcium loving plants. It is 96% calcium carbonate, a gentle source of elemental calcium. Use as a topdressing and replace when gone. The variable particle size allows for immediate and long term release. Oyster shell is basic and is used to raise pH in bonsai mix. To test PH we offer a convenient and easy-to-use PH Test Strip Kit.
We recommend you store oyster shell in a cool dry place.
See all Bonsai Health Products:
- Physan 20
- Cinnamon
- WASH ME! Natural Leaf Cleaner
- Oyster Shell
- Natural Lime
- PH Test Strips
- Citric Acid





