Cal-Mag Deficiency During Flowering And How To Supplement

During flowering, plants need more magnesium and calcium because of bud production. Calcium and Magnesium are two of the most important secondary nutrients. They are a little less important than the primary nutrients – N, P, K (Nitrogen, Carbohydrates, Water).

The Impact Of Cal-Mag On Plants

It is not easy to detect Cal-Mag deficiency in the early stages of a plant. It is important to act as soon as you detect the first sign. First signs appear in the lower leaves of the plant. The tips of the leaves curl . . .

Signs Of Cal-Mag Deficiency During Flowering

Water is one of the essential requirements for all plants. Natural water contains abundant calcium and magnesium as dissolved minerals.

How To Supplement Cal-Mag Deficiency During Flowering

You can make a homemade cal-mag supplement using Epsom salts (Magnesium sulfate) and Calcium nitrate. Mix 2 parts calcium to 1 part magnesium. You will need 6g Calcium Nitrate and 4.5g  . . .

How Much Calcium And Magnesium Should You Use?

Get something that consists of cal and mag only. Be sure to get a supplement that does not contain other nutrients. Supplements that contain nitrogen and other nutrients bring a risk of over-feeding. This is dangerous to your plants!


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