Calcium Nitrate Fertilizer
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Calcium Nitrate Fertilizer


Calcium Nitrate Fertilizer is a water-soluble formulation that provides fast-acting nitrogen along with calcium to increase fruit quality and prevent blossom end rot. Great for tomatoes, peppers, broccoli, Brussels sprouts and more!


Calcium Nitrate Fertilizer provides a fast-acting nitrogen source plus calcium for improved fruit and vegetable quality. This fertilizer contains ammoniacal and nitrate nitrogen, which results in quick uptake and fast growth responses. Nitrate nitrogen also improves the uptake of potassium, calcium and magnesium by the plant.

Calcium has many important benefits for plants. It improves cell wall strength, which leads to higher-quality fruits with a longer shelf-life. Additionally, improved cell wall strength increases the plants ability to handle pest and disease pressure. Calcium also increases heat-tolerance and helps to reduce the amount of heat stress experienced by plants in warmer climates.

Calcium Nitrate Fertilizer works great on tomatoes and peppers to reduce blossom end rot. It also helps to prevent tip burn in lettuce and rust spot in potatoes, both of which result from calcium deficiencies. Adequate calcium levels help to reduce stem rot in broccoli plants, allowing for larger heads. Calcium Nitrate is also a great product for growing brussels sprouts to ensure uniform sprouts along the stalk.

Our Calcium Nitrate Fertilizer is a water-soluble formulation that can be used with our EZ-FLO Injector in conjunction with a drip irrigation system. It can also be applied as a foliar spray, or by dissolving in a watering can and applying to the soil at the plant roots. Calcium Nitrate may be applied in the granular state as well. Side dress by applying fertilizer at least 2 inches away from the plant stem. Cover fertilizer with soil for best results.

Calcium Nitrate Fertilizer Use Recommendations

Injection: Apply 10 to 15 pounds per 1,000 square feet throughout the life of the plant. "Spoon feed" by applying at two week intervals, 5 pounds per 1,000 square feet at a time.

Foliar Spray: Mix 2-4 tablespoons per 1 gallon of water and spray leaves. Be careful doing this in really warm temperatures as the leaves can burn if outside temperatures are too hot.

Side Dress: Apply a tablespoon per plant, or 2 lbs per 100' row. Apply fertilizer at least 2 inches away outside of plant stems. Do not allow contact with wet plant foliage.

Calcium Nitrate Fertilizer Guaranteed Analysis

  • Total Nitrogen (N) - 15.5%
    • Nitrate Nitrogen - 14.5%
    • Ammoniacal Nitrogen - 1.1%
  • Soluble Calcium (Ca) - 19.0%


Customer Reviews

Based on 7 reviews
Duncanville Dan

Good product. No problem with blossom end rot this year.


Great calcium fertilizer

Cindy Carter

Great product for tomatoes! Great people.

Stacey Sharp
Cabbage and taters

Harvested this cabbage and these potatoes from one plant for dinner yesterday. Sooo good! That is the reason i choose Hoss. Everything you need, Everything you want!

Margaret Morris
5 out of 5

Your products always produce excellent results. Enjoy the gardening tips as well. My sunflowers are spectacular. Thanks.