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Salt crystal

Is Epsom Salt good for tomato and pepper plants?

Comments for Epsom Salt?

Jun 22, 2020
Lots of People
by: Jacki Cammidge, Certified Horticulturist

Epsom Salts is sometimes recommended for use on Solanacaea, which includes peppers, tomatoes and several other crops. Mainly, it is composed of magnesium, which is often lacking in soils, so this is one way to add it quickly and so it’s easily available for growing plants.

Generally, it’s only recommended for application on plants showing magnesium deficiency, which shows as chlorosis, or yellowing of the leaves, usually between the veins which stay dark green.

Magnesium sulphate (Epsom Salts) is not a cure all for every single issue that tomato plants have, and there are many. First, it’s best to do a soil test to see if the soil really is deficient.

If it is, then the fastest way to apply it so it’s available instantly is to spray it on to the leaves. Mix the Epsom Salts with water and put the solution in a sprayer. You can do this using the guidelines here.