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1. Bonide

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Bonide BND166, Rot Stop Tomato Blossom End Rot Concentrate 16 Oz., Brown/A

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Bonide #ad - Corrects calcium deficiency - Our garden fertilizer is used to control blossom end rot on tomatoes by adding calcium to the plant. Foliar fertilization - intended as a supplement to a regular fertilization program and may not, by itself, provide all the nutrients normally required by crops or other intended plants.

Multiple uses - rot stop is also effective at correcting calcium deficiencies for cucumbers, melons, and peppers. Make sure to carefully read and use according to label directions. Simply spray foliage to the point of run-off. Easy to apply - product instantly mixes with water and should be applied using either a hose-end sprayer or tank sprayer. Contains nutritional calcium - Plant food that uses nutritional calcium derived from calcium chloride as the main active ingredient.
BrandBonide #ad
ManufacturerBonide #ad
Height8 Inches
Length11 Inches
Weight1.2 Pounds
Width9 Inches
Part Number166
Model166

2. Miracle-Gro

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Miracle-Gro Shake 'N Feed Tomato, 4.5 lb., Fruit & Vegetable Plant Food

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Miracle-Gro #ad - Plus, it helps prevent disorders in edible crops commonly associated with calcium deficiency. Specially formulated with micronutrients to help plants grow strong and produce more fruits and vegetables versus unfed plants. Contains natural ingredients to feed microbes in the soil. Feeds up to 3 months. Calcium helps form stronger cell walls, producing better quality and longer-lasting fruits and vegetables. For use in ground and in containers.
BrandMiracle-Gro #ad
ManufacturerMiracle-Gro #ad
Height7.5 Inches
Length4.13 Inches
Weight4.93 Pounds
Width9.8 Inches
Part Number3002610
Model3002610

3. Southern Ag

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Southern AG 100048945 Stop Blossom-End Rot of Tomatoes Plant Nutrient, 16oz

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Southern Ag #ad - Corrects calcium deficiency. Rate: 2 tablespoons per gallon. Prevents tomato blossom end-rot due to calcium deficiencies.
BrandSouthern Ag #ad
ManufacturerSouthern AG #ad
Height1 Inches
Length1 Inches
Weight1 Pounds
Width1 Inches
Part NumberGL61100048945
Model100048945

4. Bloom City

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Quart 32 oz, Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer

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Bloom City #ad - Prevents common growth deficiencies: Apply Cal-Mag in every stage of growth for strong stalk and leaf health. Contains no harmful edta: unlike other brands, bloom city uses organic chelates and never uses chemicals like EDTA, Healthier for your garden and healtier for the planet.

We choose only the highest quality ingredient sources and manufacturing methods to create the world’s best craft growing nutrient systems. Apply with every watering for the full benefit. Contains more micronutrients than any other brand: Iron Fe, Boron B, Manganese Mn, Copper Cu, Molybdenum Mo, Zinc Zn, Sulfur S. Compatible with any nutrient system: 100% compatible with other nutrient systems, and can help make other minerals more bio-available. Bioactivated formula for optimal nutrient uptake: Calcium and magnesium, Micro-chelated with fulvic acid; if you google it you’ll see why that’s good.
BrandBloom City #ad
ManufacturerBloom City #ad
Part Numbercalmag-32

5. General Hydroponics

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General Hydroponics CALiMAGic Quart Packaging May Vary

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General Hydroponics #ad - Helps prevent blossom end rot and tip burn in tomatoes, lettuce, and other calcium intensive plants. Calimagic 1-0-0 is a concentrated blend of readily available calcium and magnesium. Will not clog spray lines or drip emitters and can be used in reservoirs combined with many other fertilizers. Contains an npK of 1-0-0 Prevents secondary nutrient deficiencies in fast growing plants.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height3.2 Inches
Length3.3 Inches
Weight2.75 Pounds
Width8.6 Inches
Part NumberHGC733525
ModelHGC733525

6. ENVY

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ENVY Solution Grade Calcium Nitrate 15.5-0-0 Prevents Rot & Calcium Deficiency in Tomatoes & Peppers 3.0 lb

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ENVY #ad - Keeps hydro systems clean - our calcium nitrate, when used in Hydroponic setups with ENVY Part I Hydro Special, keeps systems and pumps cleaner as no agricultural preservatives are used that leave an oily skim on water.

Pure & concentrated - with 19% calcium and 15. 5% nitrogen, envy's cano3 boasts supreme Greenhouse Grade quality and high nutrient concentrations. Resealable pouches - all of envy's water soluble line come in resealable pouches and include a measuring scoop for easy long term usage and storage. Great for soil - our greenhouse grade Calcium Nitrate provides an excellent source of Calcium to treat Calcium deficiency and prevent Blossom End Rot. 100% water soluble - using higher-grade ingredients than other manufacturers, we ensure complete solubility and superior solution disbursement.
BrandENVY #ad
ManufacturerNational Liquid Fertilizer #ad
Height8 Inches
Length5 Inches
Width3 Inches

7. Safer Gro

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1 Quart, Safer Gro Biomin Calcium

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Safer Gro #ad - Safer to use than inorganic minerals or synthetic chelates. Biomin is suitable for both soil and foliar applications. Biomin calcium is micronutrients chelated with amino acids.
BrandSafer Gro #ad
ManufacturerHydrofarm, Inc. #ad
Height2.7 Inches
Length5 Inches
Weight2.7 Pounds
Width9 Inches
Part NumberSG0301QT
ModelSG0301QT

8. Earthworm Technologies

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Peppers, Ecofriendly, Vegetable Garden, Great on Roses, Eggplants, EarthPods Premium Cal Mag Plus Plant Food – Easy Organic Fertilizer Spikes – 100 Count Stop Blossom End Rot, Tomatoes

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Earthworm Technologies #ad - Proprietary formula for superior results — high quality cal mag + robust with additional organic plant nutrients, trace minerals, soil humates in a form immediately available to your plants.

Fast & easy to apply — push 1 earthpod all the way into soil near center of flowering plant, then just water! EarthPods break down & slow release nutrients direct to root zone. Premium indoor organic calcium magnesium plus fertilizer — additive boost for calmag nutrient deficiency to improve blossom end rot, maximize vegetative + flower plant growth. Eco friendly & compact — stores easily on your kitchen shelf + recycle the empty paperboard tube when done EarthPods are pet, eco-friendly, child, vegan + 100% sustainably made in the USA.

Great on tomatoes, peppers & roses! no mess / no measuring / no smell — 1 tube = 100 concentrated earthpods a 4-year supply for a single special plant or use on big collection of seasonal vegetables or flowers.
BrandEarthworm Technologies #ad
ManufacturerEarthworm Technologies #ad
Height2.75 Inches
Length2.5 Inches
Weight4 ounces
Width2.5 Inches

9. Bonide

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Plant Hormone Spray 32 oz., Bonide BND544, Ready to Use Tomato and Blossom Set Spray

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Bonide #ad - Greater production - Nearly every blossom will produce larger, healthier, meatier, and almost seedless tomatoes. Ready to use - this product is conveniently ready to use when it arrives.

It is designed for tomatoes but works great on beans, peppers, eggplants, okra, strawberries, melons, cucumbers, and grapes. Power source type: Air Powered. The spray nozzle makes this product easy to deploy. Designed for fruits and vegetables - our hormone spray makes blossoms set fruit despite poor weather. Dual purpose use - this tomato bloom set can be used in both indoor and outdoor garden environments. Rapid ripening time - the time fruits and vegetables take to ripen can be increased by 3 weeks with effective use of this calcium spray.
BrandBonide #ad
ManufacturerBFG Supply #ad
Height1 Inches
Length1 Inches
Weight1 Pounds
Width1 Inches
Part NumberBND544
Model544