Crushed Oyster Shell

Oyster Shell is a natural organic source of calcium and trace minerals for calcium loving orchids. 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 orchid 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 Orchid Health Products:
- FEED ME!™ MSU Orchid Fertilizer
- GET OFF ME!™ Natural Pest Control Spray
- Natural Fungus Gnat Control
- Take Two Solutions
- Physan 20
- Oyster Shell
- Natural Lime
- Organic Seaweed Supplement
- Organic Fish and Seaweed Supplement
- PH Test Strips
- Citric Acid
- Yellow Sticky Traps
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