Tuesday, 6 Dec 2022

Epsom Salts: Fact versus Myth

Whenever the season of spring comes, every social media platform usually gets flooded with articles and blogs that suggest the use of Epsom Salts to improve your lawn and garden. These posts compel you to believe that Epsom Salts can significantly help your garden have bigger blooms, better germination, bushier shrubs, greener grasses, and even on pest problems. However, all of these claims have no scientific bases. There are no clear pieces of evidence that support these claims as they are only considered to be myths.

The Truth

Though they are called “Epsom Salts,” they are not related to the salt that we are very well acquainted with. The sodium chloride table salt is in no way similar with Epsom Salt which is composed of sulfate and magnesium. The word “Epsom” is derived from an area in England where the item was first discovered in the spring.

There are a lot of articles which claim that using Epsom Salts would increase a plant’s magnesium and sulfur level which would help generate better blooms. However, some soils are deficient in sulfur or magnesium except for soils that are sandy since they experience a lot of rainfall. As for fertilizers, the concept “more is better” is false for each plant has specific amounts of elements, and the ones that they don’t take up usually gets washed away as pollutants. Sometimes, when a plant has is exposed to too much potassium in the soil, there would be a lack of magnesium and adding more of it won’t alleviate the problem at all. A plant only requires small amounts of magnesium for it to achieve excellent help.

Sometimes, Epsom Salts are used in massive scale cultivation or commercial agriculture whenever the soil shows a deficiency in magnesium.

When it comes to planting tomatoes, using Epsom Salts is discouraged. Tomatoes lack calcium whenever Epsom Salt is used because magnesium usually competes with calcium.

There are a lot of advertisements which claim that Epsom Salts can’t be overused since it is highly soluble which is another false claim. Chemicals that are highly soluble gets washed away, and when they do, they get to wash up in waterways other properties which contradicts the claim that they just disappear from the environment.

In response to the claims that Epsom Salts can aid in pest problems, no scientific evidence supports it. In fact, test and experiments were conducted, and it was concluded that Epsom Salts have zero effect in killing any pest.

When it comes to germination: seeds no longer need anything to germinate. The use of fertilizer or any item that claims to aid germination is highly unnecessary since seeds already have this mechanism.

Articles who claim that the use of Epsom Salts can improve the health of shrub and health are not only untrue but are also potentially harmful. When used as a foliar spray, they may, in fact, cause leaf scorch on your plants and trees.


Epsom Salts, as far as science is concerned, is unnecessary when it comes to garden and lawn care. If you are eager to fix the problems of your garden, it might be better to have it checked to know what it requires and what items you should use to aid it.