Organic Cal-Mag OAC Plant Supplement, 1 Quart (32 oz) | Formulated with Iron and Micronutrients, For Coco Coir and Hydroponic, Corrects Deficiencies, Supports Heavy Feeding Programs

My go to for Cal-Mag and Micros, its perfect for any plant but I find its best for Canna, I’ve been using this stuff for the past 3 years, No I’m not sponsored, But this stuff is worth it. It is so much better than literally any cal mag on the market, its organic and it actually works. Another cool thing is it doesn’t have nitrogen in it so you don’t need to worry about any added N unlike some Cal-Mag brands. Thank you!

Works great on plants…. Exactly what they need

I love that this has about 2x the amount of calcium of any other one on the market. I have looked around a lot but I dont know everything about it but I been growing for over 12 years and this is the best calmag I have used yet. Yes it smells like vinegar but how else are you going to get organic calmag? Idk about anybody else but organic growing stinks to me I can smell it no doubt. If you dont like synthetic then you better get used to the smell or use some synthetic that says its organic. I just know that this makes my plants extremely happy and I will be using this for as long as they sell it.

Organic calmag. Works where its needed but not needed in some cases.

The plants like the nutrients and grow fast, but the chemical has a vinegar smell that is unpleasant to the user until it is mixed with water. The mix could be a little stronger concentration. I used a separate micronutrient mix that also has calcium and magnesium, so it mixes well, but if you plan on using it as a stand-alone product, you may need to use more than the instructions call for.

Love this stuff. I add to my regular feeding regime and my plants look great!

Happy with everything

Awesome stuff organic bestthier is fair price aswell