Professional Grade Ultra Pure Cal-Mag Fertilizer, (32 oz) | Helps Reduce Blossom End Rot, Corrects Deficiencies, Boost Calcium Uptake, Made for Hydro & Soil, Supports Tomatoes & Peppers

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.

I’ve been using the Bloom City Professional Grade Ultra Pure Cal-Mag (32 oz) for my plants, and I’m very impressed with the results. It’s made a noticeable difference in overall plant health—especially 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. I’ve 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 doesn’t cause buildup or clogging in my system, which I’ve had issues with in the past when using other brands. If you’re 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!

This is the only general micronutrient supplement I ever buy. I first got it when my younger plants started showing signs of nutrient deficiencies outside of NPK nutrients. My plants showed signs of recovery after one watering and a few foliar applications. Some people might not need it, especially if they are growing in properly enriched soil, but I have water that's softened at a municipal level. As a result, some minerals have been removed from my water; this product helps restore those and add others that are good for all plant growth stages, from new plants to blooming plants. Use is simple. Just measure out however much I want to add to my 2-gallon can, dump it in, add water, and water my plants as usual. No worrying about presoaking anything or lots of stirring to mix in powders. (for simplicity, I use a different fertilizer bottle's cap to measure out ~8ml when filling my watering can) The bottle cap/lid and recommended measurements have changed from the previous bottle I bought. The ingredients list is the same, as well as the concentration percentages of the minerals. They also separate the use guidelines/directions differently between them. I'll only mention the amount differences. New: watering can: 1tsp (2.5-5ml)/gallon Hose end sprayer: 1tsp (5ml) approx 1:750 ratio Foliar spray: 2-4tsp (10-20ml)/gallon Old: Grow phase: 2-4ml/gallon Bloom phase: 3-5ml/gallon Sprayer instructions: 20-40ml/gallon Not sure why they changed the amounts, but it's helpful to know the ratio for using with a hose end sprayer. Overall, great value for money in my opinion.

This stuff works well. I noticed a significant increase in my plants health and size after about 2 days. It gave my plants a healthy green vibrant look. My only complaint is with whoever shipped it. It had a seal but was missing the lid. Luckily, the lid from my bai drink bottle ended up fitting perfectly.

Great product! It stopped the rotting of tomatoes due too insufficient calcium

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

I grow bell peppers and other types of peppers in my garden. Sometimes they need calcium and magnesium to fertilize them or they start getting the source fights on them. I decided to try this one to see if it would work. I use this and within a week, my plants perked up really well. The pepper started looking very nice and green and healthy. I’m very satisfied with this product. I would suggest this for anybody this fertilizer is good quality it’s effective and being organic makes it even better.

This stuff is making a huge difference on our garden vegetables.