Can I Use Epsom Salt in My Garden?

February 2, 2023 0 Comments

can i use epsom salt in my garden
Epsom salt, named for a town in England where it’s mined, is a mineral compound of magnesium and sulfur. It’s long been used as a remedy for many ailments and has a wide range of beauty, household, and gardening-related uses.

However, Epsom salt is not a complete fertilizer and will not provide all of the nutrients your plants need. Before using it, it’s best to soil test your garden and identify any deficiencies you may have.


Magnesium is a mineral that your body needs to regulate more than 300 enzymes and to keep muscle, nerve, blood sugar, and bone health in check. People who have low levels of magnesium often experience a variety of problems including anxiety, fatigue, migraines, and muscle cramps.

You can increase your magnesium level naturally by soaking in a bath with Epsom salt. It’s the easiest and fastest way to absorb magnesium into your system.

Epsom salt can be found in most grocery stores and drugstores, but it’s important to find the highest-quality version. This is because high-quality magnesium has a more significant effect on the body than lower-quality magnesium.

It’s also important to note that you shouldn’t take magnesium supplements for long periods if you have kidney disease, or if you have a history of severe diarrhea. In these cases, your kidneys are not able to filter out excess magnesium.

Another reason why magnesium is essential for a healthy body is that it helps to maintain normal blood pressure and cholesterol levels. Studies have shown that people with a higher intake of this mineral have a lower risk of heart attack and stroke.

According to the National Institutes of Health, most Americans are deficient in magnesium and therefore should aim to consume enough daily. The recommended amount of this mineral is 310-320 milligrams for adults.

The best way to ensure that you’re getting the optimal dose of magnesium is by taking a daily supplement that has a high concentration of this mineral. You can find these supplements in many stores and online.

You can also try a bath with Epsom salt to soak your muscles and joints after a workout or a long day on the job. The magnesium in the salt will relax your muscles and reduce the tension that causes pain and soreness.

Soaking in a warm bath of Epsom salt can help to relieve stress, improve sleep and curb caffeine cravings. This is because magnesium increases serotonin levels in the brain, which leads to a better mood and a feeling of relaxation.


In the body, calcium is important for helping bones and teeth to grow and stay strong. It also helps muscles and blood vessels to contract and expand, and it sends messages throughout the body to tell cells what to do.

In plants, it is an essential nutrient for healthy root development and the formation of new tissue. It is also important for storing water and oxygen in tissues and transporting nutrients from the soil into leaves and roots.

Adding magnesium to your garden soil can be a good idea, but it must be done carefully and in conjunction with other nutrients. If you use too much, it will upset the balance of the calcium-to-magnesium ratio that plants require. It will also be easily leached away by rainfall or irrigation water, causing magnesium deficiency in your garden.

Some people have a misconception about Epsom salt, thinking that it is a natural source of magnesium that they can add to their soil. However, it is not a naturally occurring mineral and does not come from the earth in this form.

It is a chemical compound that is made from the reaction of kieserite with water or sulphuric acid with magnesium oxide. This reaction forms the hydrated form of magnesium sulfate (epsomite), which is commonly used in garden soil as an organic fertilizer.

Soil tests should always be conducted before adding any chemicals or other amendments to your garden. This is not just for safety reasons, but also because it gives you an accurate picture of your soil’s nutrient levels.

Many gardeners have used Epsom salts for years as a way of replenishing magnesium in the garden. It is believed to be a safe and effective way of treating soil that is low in magnesium and can even help increase plant growth.

But using this miracle solution’ for every problem in the garden is not a wise approach, particularly as the salts are highly soluble and can wash right into groundwater. They are also a very inefficient means of getting magnesium to plants as they inhibit calcium uptake by plants.


Phosphorous is an essential nutrient that plants need for growth, flowering, and fruit production. It also aids in photosynthesis and helps to maintain a healthy balance of nitrogen, potassium, and magnesium.

It is naturally found in the soil but can also be supplemented by using an organic fertilizer. It is best to get your soil tested to ensure it has adequate levels of phosphorus before adding any supplemental nutrients.

A dilution of Epsom salts and water can be used to treat deficient soils. However, this is a risky practice since Epsom salts can be a pollutant to groundwater.

In addition, foliar application of the salts can cause leaf scorch on certain types of plants like roses and peppers. Avoid spraying plants with a diluted solution of Epsom salts. Rather, wait until the plant has started to show signs of a magnesium deficiency such as yellowing leaves or nearly white leaf veins.

Magnesium is an important nutrient for the development of chlorophyll, which provides green color to a plant’s foliage and improves its photosynthetic ability. Increasing magnesium in the soil can help a plant grow faster and better absorb its nutrients.

Another benefit of magnesium is that it helps prevent root shock when transplanting seedlings or full-grown plants. If a root is stressed, it will produce less chlorophyll and stop growing. When magnesium is added to the soil, it encourages the roots to produce more chlorophyll and allows them to absorb more of their essential nutrients.

Unlike the macronutrients nitrogen and phosphorus, there is no scientific evidence to support the claim that Epsom salt increases garden productivity by helping plants grow more vigorously or faster. This would only be true if the soil was already deficient in magnesium and the plants were taking it from the existing soil.

Some people use Epsom salts on houseplants to replace some of the lost magnesium. But houseplants aren’t grown in soil that’s been enriched with the micronutrients and organic matter that are required for healthy soil. The potting mix used in houseplant containers can lose magnesium over time as it is not processed by bacteria and other microbes.


Many people use Epsom salt as a soil amendment or fertilizer. They might add a tablespoon or two of the product with water to spray on a plant or work it into the soil before planting, or they might sprinkle the salt over the entire garden area.

The primary nutrient in Epsom salt is magnesium, which can help plants take in the optimum amount of other nutrients that are essential to their growth and survival. Magnesium is also important for the creation of chlorophyll, which is critical to photosynthesizing, a process that enables plants to make their food and energy.

Another nutrient that can be found in Epsom salt is potassium, which is a necessary component of the body’s fluid balance and nerve signals. It also helps the body absorb calcium and phosphorus, which are important for bone health.

However, it’s important to note that adding too much of this nutrient can cause side effects in some people. This is particularly true for those with kidney problems or taking certain medications, like ACE inhibitors used to treat high blood pressure.

Some people believe that Epsom salt improves the growth of plants, especially roses, and tomatoes. While there is no definitive proof that this claim holds up, some gardeners claim to have noticed an improvement in their plants’ foliage and flowers when using the solution.

Unfortunately, there is no evidence that Epsom salts make these types of improvements to plants, so they should not be used. Using them can have negative effects on your garden, including causing leaf scorch or reducing the uptake of NPK nutrients.

Soil Tests and Fertilizer Are Needed

Before you use any type of fertilizer or another nutrient in your garden, it’s important to know what is lacking in your soil. Buying a DIY soil test kit or sending a sample to your local college agriculture department is a good way to determine what is needed.

If you notice a deficiency in one of the three minerals, it’s best to use an effective fertilizer or soil amendment to fill the gap. It’s also important to remember that a large amount of a nutrient can be detrimental to your garden, so it’s best to start small and work up to the recommended amounts.