What Does Magnesium Do for Plants?

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Magnesium plays a central role in photosynthesis. It is also important for cell division and protein formation. As such, it is important through the whole growth period of a plant.

It is not easy to spot magnesium deficiencies based on symptoms alone. When symptoms are present it typically affects older leaves before being apparent on younger leaves. You may see purple or red spots on leaves or growth may be slowed with some leaves turning yellow. Leaves that are exposed to more light will show more symptoms than those that aren’t.

Magnesium’s importance in plant development has been overlooked by many until recent. This is mainly because it is difficult to spot magnesium-related deficiencies. This is why you’ll want to make sure that you’re supplementing your plant with magnesium without relying on symptoms.

It’s actually very easy and cheap to do. Dissolve some Magnesium Sulfate (Sitz bath salts) in with your water mix or fertilizer and it will deliver magnesium to your plants’ roots.

Other Secondary Macronutrients

Other than magnesium, there are other macronutrients that plants need.

Sulfur and calcium are two other important secondary macronutrients that plants need. 

Also be sure to check out the primary macronutrients that are often displayed on fertilizer bags as N-P-K

If you are looking for the best macro and micronutrients for your plant, I highly recommend checking out Earthpods capsuled fertilizer which delivers the correct nutrients through microbes. You can definitely have success with other fertilizers, but it’s what I recommend for the healthiest plants.

You can also check out the best fertilizers I recommend for particular plant types. 

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Happy Planting!

About the author: Carley Miller is a horticultural expert at TheGreenPinky. She previously owned a landscaping business for 25 years and worked at a local garden center for 10 years.

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