Item Number: F263
Kelzyme Calcium CAFE Micronized (4 lb)
Great Fertilizer for Adding Calcium
Rapid calcium availability can make a significant difference in plant health, and a micronized form ensures quick uptake through soil or foliar applications. Kelzyme CAFE™ Micronized is a fine, easy-to-mix powder sourced from ancient seabeds, providing both calcium carbonate and calcium oxide for a balanced, highly available nutrient source. With a guaranteed 35% calcium content, it supports strong cell structure, vigorous root growth, and improved fruit and flower development.
The ultra-fine texture is ideal for use in foliar sprays, fertigation systems, or soil drenches, allowing plants to absorb calcium more quickly than with standard granular forms. This helps prevent common deficiencies such as blossom end rot in tomatoes and peppers while enhancing overall plant resilience. Suitable for vegetables, fruits, flowers, shrubs, trees, turf, and vineyards, it works in gardens of all sizes.
This 4 lb size is perfect for container gardens, raised beds, and small-scale plantings, offering the same quality and performance as the larger pail in a more manageable package. Naturally sourced and free from synthetic additives, it’s an excellent choice for sustainable gardening and food production.
Need a larger micronized size? See our Kelzyme Calcium CAFE Micronized (35 lb pail).
Prefer a slow-release granule? Try Kelzyme Calcium CAFE Granular (4 lb) or Kelzyme Calcium CAFE Granular (35 lb pail).
- Derived From: Calcium carbonate and calcium oxide
- Guaranteed Analysis: 35% calcium
- Form: Micronized powder
- Source: Ancient seabeds
- Suitable For: Vegetables, fruits, flowers, shrubs, trees, vineyards, turf


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Since 1976, we've served our customers at every stage of growing. Please contact us at any time. We are happy to support and assist you.
Shipping Information
Shipping Information
Cannot ship to the following states: AL, AZ, AR, CT, DE, GA, IL, IN, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, NE, NH, NJ, NM, NY, NC, ND, OH, OK, PR, RI, SC, SD, TN, VI, VT, VA, WA, WV, WI, WY
Shipping Weight: 4.75 lb
Dimensions: 10.0"L x 8.0"W x 3.0"H
Features
Features
Characteristics
Characteristics
Use Instructions
Use Instructions
- Mix with water at a rate of 1-2 ounces per 10-20 gallons of water
- Soil, Turfs and Lawn Application: Apply in irrigation water until the ground is saturated. Continue applications through the growing season as needed
- Hydroponic Application: Application rates may vary by hydroponic systems
- Nursery & Container: Add to sprayer (hand, backpack or power unit) and apply
Useful Information
Useful Information
Guarantee
Guarantee
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I used this product in the soil when I planted my Tomatoes and I've had no blossom end rot this year. I also used this product as a foilar spray with this as it can act like diatomaceous earth on the plant as well.