
Calcium Nitrate 15.5-0-0 Fertilizer
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Price facts
- Lowest price today: $7.77 at Amazon (checked Nov 11, 2026).
Calcium Nitrate 15.5-0-0 Fertilizer prices at every store
- AmazonNew
Availability unknown
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$7.77+ $5.47 shippingChecked 1 h ago
Also available at
- Seven Springs Farm SupplyCheck price at Seven Springs Farm Supply
- BetterGrow HydroCheck price at BetterGrow Hydro
- Greenhouse MegastoreCheck price at Greenhouse Megastore
- PowerGrow Systems & Utah HydroponicsCheck price at PowerGrow Systems & Utah Hydroponics
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Calcium Nitrate 15.5-0-0 Fertilizer price history
Lowest price we've seen: $7.77 on Nov 11 at Amazon. Tracked across 4 stores since Nov 11.
About the Calcium Nitrate 15.5-0-0 Fertilizer
Calcium Nitrate is a fantastic 100% water soluble fertilizer that is used by hobbyists and professional growers world wide. It's high nitrogen levels encourage lush vegetative growth, and the water soluble calcium increases cell wall strength in plants and can prevent common calcium deficiencies like blossom end rot in tomatoes.
• 100% Agricultural Grade Fertilizer
• Fully water soluble - easy uptake by your plants!
• Promotes lush green vegetative growth
• Calcium increases plant resilience and prevents calcium deficiencies
• NPK Ratio of 15.5-0-0 + Calcium
HYDROPONIC APPLICATION RATES
It is recommended to use in conjunction with other balanced fertilizers (We recommend MasterBlend). A suggested starting solution consists of 12g MasterBlend 4-18-38 fertilizer and 6g Epsom Salts (Completely dissolve in 5 gallons of water), and finally 12g Calcium Nitrate dissolved in water as the last step.
SOIL & FOLIAR APPLICATION INSTRUCTIONS:
Foliar Application: Mix 2-4 tsp per 1 gallon of water and spray the foliage.
As a Supplemental (Side Dressing) Fertilizer Application: Apply 1 pound per 100 feet of row (1 cup per 50 feet of row or 1 level tablespoonful per plant). Apply to root growing area. Do not place within 2 inches of stalk or crown of plants. Do not allow contact with wet foliage.
On Apples: Ground application broadcast under the tree. Use at a rate of 1/2 pound for each year of tree growth to a maximum of 8 pounds per tree. Apply in February or apply in split applications in February and October.
Questions and answers
- Where is the Calcium Nitrate 15.5-0-0 Fertilizer cheapest?
- At Amazon, for $7.77, as of our latest check.
- What do buyers say about the Calcium Nitrate 15.5-0-0 Fertilizer?
- Rated 5 out of 5 from 2 ratings.
- Where can I buy the Calcium Nitrate 15.5-0-0 Fertilizer?
- 5 stores we checked sell it, including Amazon, Seven Springs Farm Supply, BetterGrow Hydro, Greenhouse Megastore, PowerGrow Systems & Utah Hydroponics.













