Plant and blossom power. Bloom City’s Cal-Mag UltraPure formulation contains calcium, magnesium, and a wide array of micro-nutrients to grow healthier plants. Use Cal-Mag to prevent blossom end rot in tomatoes and peppers.

• Bloom City Cal-Mag works better because it contains more micronutrients than any other brand including iron, zinc, manganese and more.
• Prevents common growth deficiencies at every stage of growth. Apply with every watering for the full benefit.
• We use organic chelates and no harmful chemicals like edta. It's healthier for your garden and the planet.
• Made in America by a small team of passionate plant scientists using only the highest quality ingredients.