--- product_id: 745469293 title: "Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers" brand: "bloom city" price: "€ 52.96" currency: EUR in_stock: true category: "Bloom City" url: https://www.desertcart.hr/products/745469293-bloom-city-professional-grade-ultra-pure-cal-mag-fertilizer-8 store_origin: HR region: Croatia --- # Calcium + Magnesium boost 8 oz liquid formula 2-5 mL per gallon mix ratio Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers **Brand:** bloom city **Price:** € 52.96 **Availability:** βœ… In Stock ## Summary > 🌱 Elevate your garden game with pure Cal-Mag power! ## Quick Answers - **What is this?** Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers by bloom city - **How much does it cost?** € 52.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/745469293-bloom-city-professional-grade-ultra-pure-cal-mag-fertilizer-8) ## Best For - bloom city enthusiasts ## Why This Product - Trusted bloom city brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Pro-Grade Purity:** Ultra-pure formula trusted by 6,500+ growers with 4.7-star rating - β€’ **Beginner Friendly:** Simple mixing and application for all skill levelsβ€”grow like a pro - β€’ **Blossom End Rot Defense:** Targets calcium deficiencies to protect your prized tomatoes & peppers - β€’ **Versatile Growth Support:** Perfect for soil, hydroponics, indoor & outdoor gardens - β€’ **Effortless Nutrient Boost:** Just 2-5 mL per gallon for vibrant, healthy plants ## Overview Bloom City’s Professional Grade Ultra Pure Cal-Mag Fertilizer delivers a precise blend of calcium and magnesium in an easy-to-use liquid form. Designed for both soil and hydroponic systems, this 8 oz formula helps prevent blossom end rot and correct nutrient deficiencies, supporting robust stems and vibrant foliage. Trusted by thousands of growers, it’s the essential nutrient boost for thriving tomatoes, peppers, and all your favorite plants. ## Description Looking for a simple way to support your plants' growth? Our liquid Cal Mag for plants provides calcium and magnesium, key nutrients that plants use to maintain sturdy stems and vibrant foliage. Whether you're caring for a home garden, growing indoors, or tending to an outdoor landscape, this CalMag for plants works well in various growing environments, including soil and hydroponic systems. Many growers choose Cal Mag for plants to address potential nutrient imbalances, which may affect growth and appearance. This Cal Mag fertilizer is an easy way to include vital nutrients in your plant care routine, helping you nurture your plants with ease. It is an ideal option for growers looking to support healthy and beautiful plants. ## Features - Easy Mixing Directions: Simply add 2-5ml per gallon of feedwater, then water your plants as you normally would. A straightforward addition to your plant care routine, suited for all types of plants. - Nutrient-Focused Formula: This Cal Mag fertilizer contains calcium and magnesium that plants use for maintaining strong stems and vibrant leaves. Suitable for both indoor and outdoor use. - Adaptable for Different Growers: Whether tending to houseplants, outdoor gardens, or hydroponic setups, this CalMag for plants fits into a variety of growing conditions and plant care styles. - Supports Plant Nutrition: Many gardeners turn to Cal Mag for plants to help address nutrient needs, aiming to support consistent growth and leaf color, linked to calcium and magnesium intake. - Suitable for Growers of Any Skill Level: From beginners to experienced gardeners, this Cal Mag fertilizer is easy to integrate into any plant care routine, providing essential nutrients in an accessible format. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08JHFG5GH | | Application Method | Watering | | Brand Name | Bloom City | | Coverage | Full | | Customer Reviews | 4.7 4.7 out of 5 stars (6,529) | | Item Form | Liquid | | Item Weight | 8 Ounces | | Liquid Volume | 8 Fluid Ounces | | Manufacturer | Bloom City | | Mixing Ratio | 2-5 mL per gallon | | Number of Items | 1 | | Number of Packs | 36 | | Part Number | BCALMAG8OZ | | Specific Uses For Product | Organic | | Target Species | plants | | UPC | 841401125691 | | Unit Count | 8 Grams | ## Product Details - **Brand:** Bloom City - **Item form:** Liquid - **Item weight:** 8 Ounces - **Liquid volume:** 8 Fluid Ounces - **Specific uses for product:** Organic ## Images ![Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers - Image 1](https://m.media-amazon.com/images/I/410bzTUvWnL.jpg) ![Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers - Image 2](https://m.media-amazon.com/images/I/51x4nLStD8L.jpg) ![Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers - Image 3](https://m.media-amazon.com/images/I/61C7xgfiKgL.jpg) ![Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers - Image 4](https://m.media-amazon.com/images/I/511KJiuFmoL.jpg) ![Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer, (8 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers - Image 5](https://m.media-amazon.com/images/I/51w8ctgVZEL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, 1/2 Pint (8 oz) - Bloom City Organic Liquid Seaweed and Kelp Fertilizer Supplement, (8 oz) Concentrated Makes 45 Gallons - Bloom City Liquid Silica Boost Fertilizer and Supplement, 1/2 Pint (8 oz) Concentrated Makes 45 Gallons --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/745469293-bloom-city-professional-grade-ultra-pure-cal-mag-fertilizer-8](https://www.desertcart.hr/products/745469293-bloom-city-professional-grade-ultra-pure-cal-mag-fertilizer-8) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-18*