Pacific Pearl Pure Oyster Shell Plant Calcium is a premium soil amendment that provides a slow-release source of essential calcium and trace minerals for stronger plant cell walls, improved nutrient absorption, and enhanced resistance to stress and disease. This environmentally friendly product is sustainably sourced and naturally pH-buffering, making it perfect for raising acidic soils to a more favorable level. Use it to boost plant health in vegetable gardens, fruit orchards, and ornamental landscapes.
Calcium (Ca): 36%
Calcium Carbonate Equivalent: 92%
Derived From: Ground Oyster Shell
OMRI Listed for Organic Use.
New Plantings: Mix ½ to 1 cup per cubic foot of soil.
Established Plants: Sprinkle ¼ to ½ cup around the base and work into topsoil.
Soil Amendment: Apply 1–2 lbs per 100 sq. ft. before planting.
Water thoroughly after application.
One 7 lb bag treats multiple garden beds or dozens of plants depending on application rate.
Apply at planting or as a top dressing during the growing season. For soil pH adjustment, apply before planting.
• Rich in natural calcium for strong plant structure
• Slow-release formula for long-lasting results
• Improves soil aeration and water retention
• Helps prevent blossom-end rot and other calcium deficiencies
Wear gloves when handling. Keep out of reach of children and pets. Avoid inhaling dust.
Store in a cool, dry place away from moisture and direct sunlight.
Weight: 7 lb
Form: Ground Oyster Shell
UPC: 860010618615
Manufacturer: Pacific Pearl
Organic: OMRI Listed
Country of Origin: USA
Pacific Pearl Pure Oyster Shell Plant Calcium is a premium soil amendment that provides a slow-release source of essential calcium and trace minerals for stronger plant cell walls, improved nutrient absorption, and enhanced resistance to stress and disease. This environmentally friendly product is sustainably sourced and naturally pH-buffering, making it perfect for raising acidic soils to a more favorable level. Use it to boost plant health in vegetable gardens, fruit orchards, and ornamental landscapes.
Calcium (Ca): 36%
Calcium Carbonate Equivalent: 92%
Derived From: Ground Oyster Shell
OMRI Listed for Organic Use.
New Plantings: Mix ½ to 1 cup per cubic foot of soil.
Established Plants: Sprinkle ¼ to ½ cup around the base and work into topsoil.
Soil Amendment: Apply 1–2 lbs per 100 sq. ft. before planting.
Water thoroughly after application.
One 7 lb bag treats multiple garden beds or dozens of plants depending on application rate.
Apply at planting or as a top dressing during the growing season. For soil pH adjustment, apply before planting.
• Rich in natural calcium for strong plant structure
• Slow-release formula for long-lasting results
• Improves soil aeration and water retention
• Helps prevent blossom-end rot and other calcium deficiencies
Wear gloves when handling. Keep out of reach of children and pets. Avoid inhaling dust.
Store in a cool, dry place away from moisture and direct sunlight.
Weight: 7 lb
Form: Ground Oyster Shell
UPC: 860010618615
Manufacturer: Pacific Pearl
Organic: OMRI Listed
Country of Origin: USA