Can you use Epsom salts as a magnesium sulfate treatment for plants?

Share this:
Q:

Can you use Epsom salts as a magnesium sulfate treatment for plants?

A:

Yes, Epsom salt can be used as a magnesium sulfate treatment for your plants. Epsom salt is a form of magnesium sulfate that is highly soluble in water. This means it can be easily fed to your plants by foliar or root applications. Besides being highly soluble in water, Epsom salt also has a relatively neutral pH compared to other magnesium sources, which makes it compatible with horticultural applications.

For foliar applications, start with 1 tbsp. per gal. of water. For root applications, use 2 tbsp. per gal. of water. Allow the Epsom salt to dissolve before feeding the concoction to your plants.

For plants showing signs of a magnesium deficiency, it is recommended to use a foliar application, because plants can absorb nutrients more quickly through their leaves than their roots.

Have a question? Ask Maximum here.

View all questions from Maximum.

Written by Maximum Yield
Profile Picture of Maximum Yield
Maximum Yield is a print and online magazine published by Maximum Yield Inc. that covers topics such as hydroponics and organics, as well as greenhouse, container, urban, and vertical growing. Each issue is focused on showing you how to reach your Maximum Yield by providing informative articles on the latest technologies, and plenty of tips and tricks from modern growing experts.  Full Bio