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๐ฑ Elevate your garden game with every drop!
Bloom City's 32 oz Cal-Mag liquid fertilizer delivers essential calcium and magnesium to support strong stems, vibrant leaves, and reduce blossom end rot. Designed for all growing environmentsโhydroponic or soilโand suitable for gardeners of any skill level, itโs a trusted, easy-to-use solution with a 4.6-star rating from thousands of users.



















| ASIN | B073ZNQWCM |
| Application Method | Watered-in fertilizer and foliar spray |
| Best Sellers Rank | #3,947 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #124 in Garden Fertilizers |
| Brand | Bloom City |
| Brand Name | Bloom City |
| Coverage | Full |
| Customer Reviews | 4.6 out of 5 stars 6,967 Reviews |
| Item Form | Liquid |
| Item Highlight | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers |
| Item Weight | 2 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Bloom City |
| Mixing Ratio | x mL per 1 gallon of water |
| Number of Items | 1 |
| Part Number | BCALMAG1Q |
| Specific Uses For Product | Organic |
| Target Species | plants |
| UPC | 841401125141 |
| Unit Count | 32 Fluid Ounces |
D**T
Great product!
Did wonders for my plants! Will definitely purchase again.
J**W
Best plant fertilizer
Iโve been using the Bloom City Professional Grade Ultra Pure Cal-Mag (32 oz) for my plants, and Iโm very impressed with the results. Itโs made a noticeable difference in overall plant healthโespecially with preventing calcium and magnesium deficiencies that can show up as yellowing leaves or weak growth. The formula is clean and easy to mix, and a little goes a long way. Iโve used it with both soil and hydro setups, and it works great across the board. My plants look greener, stronger, and more vibrant since adding this to my routine. Another big plus is that it doesnโt cause buildup or clogging in my system, which Iโve had issues with in the past when using other brands. If youโre growing vegetables, houseplants, or anything that needs that extra nutrient boost, this is definitely worth trying. Reliable quality and consistent results. I'll be buying again!
L**I
Great product will buy again
This took care of blossom end rot on my tomatoes really quickly, I will be using this every year, hurrayโฆbig beautiful tomatoes!
A**R
Make stronger
Works
T**I
Tomatoes love this!!!
Tomatoes love this fertilizer definitely a good buy!
F**O
Essential for the health and vitality of your plants
I bought this concentrated Cal Mag fertilizer because my plants were starting to show signs of nutrient deficiency (yellowing leaves and drooping edges), and the results have been amazing in just a few days. What I liked most: Exceptional performance: Being a concentrated formula, it lasts a very long time. A very small amount diluted in irrigation water is more than enough. Visible and fast results: The plants regained a vibrant green color and firmer, healthier leaves in no time. Complete formula: The extra supply of calcium, magnesium, and essential micronutrients has strengthened both the roots and overall growth. Easy to apply: It dissolves perfectly in water without leaving any residue or clogging sprayers. Conclusion: If you want to prevent nutrient deficiencies in your plants or give them that extra boost during the growth and flowering phases, this Cal Mag is an excellent investment. 100% recommended for any gardening enthusiast.
A**E
Wonderful
Tomatoes were really small and had bottom rot this stopped it and made them bigger
M**K
No more blossom end rot
My tomatoes have suffered with blossom end root for years. I will admit that I am a novice gardener and I truly have no idea what I am doing. I have fertilized, time my watering, added bone meal to no avail. As a last effort, I used liquid Cal-Mag. What a difference. No more BER. My harvest has increased and I'm now tomatoes for sandwiches instead of the compost pile
Trustpilot
1 week ago
1 month ago