Collection: Calcium Fertilizers
Compare products by nutrient analysis, formulation, application method and label directions.
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Sup'R Green Organic Chicken Manure (Composted) (25 lb)
Regular price $6.99Sale $6.99Unit price per -
Calphos Soft Rock Phosphate - Regular Powder (50 lb)
Regular price $22.99Sale $22.99Unit price per -
Nutri-Rich 4-3-2 Fertilizer Pellets (50 lb)
Regular price $13.99Sale $13.99Unit price per -
Azomite Micronized (44 lb)
Regular price $27.99Sale $27.99Unit price per -
Oyster Shell Flour (50 lb)
Regular price $25.99Sale $25.99Unit price per -
Peaceful Valley Organics All Purpose Pelleted Fertilizer 4-3-2 (50 lb)
Regular price $12.99Sale $12.99Unit price per -
Diamond K Solution Grade Gypsum (50 lb)
Regular price $17.99Sale $17.99Unit price per -
Fish Bone Meal 4-12-0 (5 lb)
Regular price $15.99Sale $15.99Unit price per -
Tomato & Vegetable Food 4-5-3 (4 lb bag)
Regular price $11.99Sale $11.99Unit price per -
Azomite - Micronized (2 lb)
Regular price $9.99Sale $9.99Unit price per -
Fish Bone Meal 4-12-0 (40 lb)
Regular price $85.99Sale $85.99Unit price per -
Tomato & Vegetable Food 4-5-3 (15 lb bag)
Regular price $36.99Sale $36.99Unit price per -
Sure Start 4-6-2 (4 lb bag)
Regular price $11.99Sale $11.99Unit price per -
Alfalfa Meal (4 lb Box)
Regular price $13.99Sale $13.99Unit price per -
Ultra Bloom 0-10-10 (4 lb bag)
Regular price $11.99Sale $11.99Unit price per -
Alfalfa Meal (40 lb Bag)
Regular price $55.99Sale $55.99Unit price per -
Rock Phosphate 0-3-0 (5 lb)
Regular price $14.99Sale $14.99Unit price per -
Citrus and Avocado Fertilizer (50 lb)
Regular price $57.99Sale $57.99Unit price per -
Dolomite (50 lb)
Regular price $26.99Sale $26.99Unit price per -
Bone Meal Steamed 3-15-0 (25 lb)
Regular price $58.99Sale $58.99Unit price per -
Organic Bone Meal Fertilizer 3-15-0 (50 lb)
Regular price $57.99Sale $57.99Unit price per -
Par 4 Granulated Bone Meal 2-14-0 (50 lb)
Regular price $39.99Sale $39.99Unit price per -
Crab Shell Meal 4-3-0 (40 lb)
Regular price $57.99Sale $57.99Unit price per -
Garden Gypsum Prilled (5 lb box)
Regular price $11.99Sale $11.99Unit price per -
Dolomite Lime Prilled (5 lb box)
Regular price $11.99Sale $11.99Unit price per -
Sure Start 4-6-2 (15 lb bag)
Regular price $36.99Sale $36.99Unit price per -
Shrimp Shell Meal 6-6-0 (15 lb)
Regular price $45.99Sale $45.99Unit price per -
Garden Lime Prilled (5 lb box)
Regular price $9.99Sale $9.99Unit price per -
All Purpose Plant Food 5-5-5
Regular price $12.99Sale $12.99Unit price per -
Hill & Valley Fertilizer Mix Plus N 2.0-4.0-4.0 (40 lb)
Regular price $51.99Sale $51.99Unit price per -
FoxFarm Cal-Mag (1 qt)
Regular price $27.99Sale $27.99Unit price per -
Calphos Soft Rock Phosphate (5 lb bag)
Regular price $8.99Sale $8.99Unit price per
Collection: Calcium Rich Fertilizers
Calcium Fertilizers for Plants and Soil
Shop calcium sources including gypsum, oyster shell, limestone products and blended fertilizers. Products differ in calcium concentration and in their effects on soil pH, sulfur supply and other soil properties.
Choosing and Applying
Use a soil test to distinguish a calcium need from a pH problem. Compare analysis and label directions; lime, gypsum and oyster shell are not interchangeable.
Compare pH-correcting products, soil tests and other nutrient-specific fertilizers.