Home Gardening Tips 10 Proven Uses of Epsom Salt In The Garden

10 Proven Uses of Epsom Salt In The Garden

by ThatWoW Editorial Team

Epsom salt is one of those ingredients in your pantry that has a number of uses like baking soda, vinegar, or liquid dish soap. Different plants have different reactions to changing seasons and seeing your loving plants die due to the very same nature that grows them can be really heartbreaking. Epsom salt is actually magnesium sulfate and it is an age-old hack for a variety of garden needs.

Magnesium sulfate or Epsom salt can boost a plant’s health by increasing their nutrition absorption capability and deter pests. It can also benefit your plants, herbs, veggies, or almost anything you wish to grow.  Epsom salt is like a superfood for plants and like other fertilizers Epsom salt does not poison groundwater nor does it build up in your soil.

Things to Know Before Using Epsom Salt in your Garden

You need to be a little careful with Epsom salt, for personal use only use USP certified Epsom salt.

Magnesium sulfate (or Epsom salt) has natural laxative properties, it is advised that you keep them away from pets, children, and pregnant women.

Also since you will be using agricultural grade Epsom salt on plants make sure you wear gloves while using it on plants as Epsom salt can also be absorbed by the skin.

Lastly, check your soil for mineral deficiencies, and use Epsom salt if your soil has lacks magnesium content.

List of 10 Ways to Skillfully Use Epsom Salt in Your Garden

1. Give Seeds a Boost-start

The little seedlings get an energy boost from magnesium. It helps them in germination by strengthening stem walls which provide extra energy for the growth of plants.

So once you have planted the seeds, mix one tablespoon of Epsom salt with one gallon of water and apply it on the seeds. You can also add one tablespoon of Epsom salt into the potting hole before planting the seeds. You can also soak root balls in a diluted mixture of Epsom salt.

Scatter one cup of Epsom salt per 100 sq feet and water thoroughly to promote the growth of wildflowers and grass seeds. Keep reapplying Epsom on seedlings once a month while they grow.

2. Epsom Salt for Tomatoes

A lot of magnesium is required by tomato plants for them to grow healthy and produce good output. And it has been noticed that plants with lesser levels of magnesium give less-sweeter tomatoes as compared to the ones whose magnesium levels are actively taken care of.

You can maintain magnesium levels of the soil by regular and measured application of Epsom salts. What do you get with this? The tomato plants yield after the application of Epsom salts are greener, stronger, have thicker foliage, yield more and sweeter fruit, and even taste better.

While planting tomato seeds, pour one tablespoon of Epsom salt at the bottom of the hole you dig for the plant or over a thin layer of soil at the bottom of the pot. Cover the layer of Epsom Salt with a thin layer of soil and then plant the seed as you normally would.  As the plant grows, water it with the liquid mixture of Epsom Salt (i.e. 1 tablespoon of Epsom Salt mixed into 1 Gallon of water) once every two weeks.

Some people think the problem of end rot can be cured with Epsom salt but it depends on the calcium levels of the plant not magnesium. Epsom salt benefits your tomato plants with a lot of problems but does not lesser the end-rot.

3. Better Flavored Peppers

Spice up your recipes with homegrown peppers and you will notice the difference between the taste of fresh peppers in any dish you will make. Like tomatoes, pepper plants also need magnesium for proper growth. Epsom salt helps seeds germinate faster, yield more flavored peppers, and the quantity of yield also increases.

To have a robust growth of pepper plants deficiency of magnesium must be treated, adding Epsom salt to the plant helps build stronger cell walls. It also helps develop thicker foliage and tastier peppers.

Sprinkle a tablespoon of Epsom salt on the bottom of the hole you dug for planting the seeds. Cover the Epsom salt with a thin layer of soil and plant the seeds. During the growing and producing period of plant water it with a liquid solution of Epsom salt (i.e 1 tablespoon of Epsom Salt mixed with 1 Gallon of water) twice a month. The liquid solution is easily absorbed by the plants.

4. For Roses

These flowers are declared as the flowers of love and there is something about their smell too that agrees with that description. Not only does this plant have an alluring smell but it also makes great cut-outs to put in a vase and bring some floral beauty inside your house.

But to have a healthy plant would require some efforts for sure and Epsom salt is one of the ingredients that people who grow rose plants love. The use of Epsom salt strengthens the plant and give richer colors to both the foliage and the flowers.

Also, regular application of Epsom salt can increase the levels of Magnesium which is important for the production of chlorophyll and germination of seeds. In addition to that it helps in strengthening the cell walls and also improves the plant’s intake of other necessary minerals like sulfur, nitrogen, and phosphorus.

Before planting soak the roots of the plant in a diluted solution of Epsom salt (i.e Half cup of Epsom Salt in one gallon of water). Before planting the plant in the ground or pot, first, sprinkle a tablespoon of Epsom salt and cover it with a thin layer of soil then plant the bush.

Sprinkle one 1 tablespoon of Epsom salt per foot of the plant’s height around the base of the plant once a month before watering during the growing period.

5. Epsom salt for Fruit Bearing Trees

Fruit-bearing trees are a blessing and if you are lucky to have a home where you can grow a tree-like that then you are lucky. Although it does require a lot of time and patience to grow them, those who grow them know that they are worth it. Since bearing fruit is a long process the magnesium levels of the soil fluctuate during the growing period and Epsom salts can help the trees maintain the magnesium levels.

Epsom salts can make the plant stronger and yield tastier fruits. Also, it causes better photosynthesis which makes the tree more lush and beautiful. It is also said that trees treated with Epsom salts are more weather and disease resistant.  You need to apply at least 2 tablespoons of Epsom salt per 9 square feet over the roots of the tree 3-4 times a year.

6. For Greener Grass on Your Side

A yellow looking lawn is not admired by anyone and as easy it is for grass to grow it can be difficult to grow and maintain the lush green lawn of your dream. I for one dread seeing dry grass on my lawn more than anything but Epsom salt along with its many versatile uses can help you with this too, but you should check if your soil is Magnesium deficient.

If it is magnesium deficient than Epsom salt is definitely the way to go. I am not saying that you should only use Epsom salt to fertilize the grass, don’t do that, it can be disastrous for the well being of your lawn. Although as an additional fertilizer Epsom salt is a miraculous ingredient. Also it is natural and costs a fraction of what store-bought fertilizers would.

It is said to make grassroots stronger. Lack of magnesium can also interfere with photosynthesis, Epsom salt helps in this scenario and the result is greener and healthier looking grass. For every 1300 square feet of grass apply 3 pounds of Epsom salts using a spreader or spray over a diluted solution of Epsom salt.

7. Helps with Root Transplant Shock

Epsom salt is so versatile but knowing this use for it was new to me too. We know that Epsom salt helps in germination and is used to soak the roots of some plants before they are planted to ensure better growth. But it can also help with root transplant shock.

When you transplant a plant from a pot to the soil or move a plant from one place to another the roots of the plant may have trouble adjusting in their new location much like we do when we move. This difficulty of plants to adapt their new location is known as root transplant shock.

Epsom salt will improve the nutrition intake of the plant and increase the production of chlorophyll this will help the plant in adapting to the new environment much easier. After the plant is in its new location water the plant with a diluted solution of Epsom salt (i.e 1 tablespoon of Epsom salt mixed with 1 gallon of water). You can also add 2 teaspoons of Epsom salt directly at the bottom hole or new pot, then cover the layer of Epsom salt with a layer of soil, water it and then plant the roots.

8. Epsom Salt as a Natural Pest Deterrent

Normal salt and baking soda are some of the common natural spreads that are used to get rid of the uninvited guests of your garden, they kill the slugs and snails that wonder in your backyard by dehydrating them. But Epsom salt would work well too and in the process of treating the plants for the pest you will give a boost to the roots of the plant as well.

To kill the pests, mix a cup of Epsom salt in 4-5 gallons of water and spray over the foliage of the plant. You can also simply sprinkle the Epsom salt around the base of the plant to get rid of the slugs and snails. It is non-toxic, natural, and doesn’t burn a hole in your pocket.

9. Epsom Salt for Removal of Tree Stumps

An old tree stump if not the most pleasant sight to look and they are quite hard to remove as well. Professional removal of tree stumps can cost you anywhere between $60 to $350. But if you consider yourself a little handy you can do it yourself with some Epsom salt and a drill. Epsom salt is well known for its ability to absorb water, so by dehydrating the stump Epsom salt makes it easier for us to it.

Using an electric 1/2 inch drill bit, drill multiple holes on the top of the stump. The depth of the holes should be at least half of the depth of the stump. Drill multiple holes that are at least 3-4 inches apart. When there is no more space left on top of the stump to drill holes, start to fill the holes with dry Epsom salt and then add water.

Make sure you don’t saturate the salt, just a little water to moisten the salts will do the trick. Also look for exposed roots and sprinkle Epsom salt on them out. This method will require a bit of patience don’t expect to remove the stump just after the first time. So repeat the process once every few weeks until the stump is completely dried out and can be chopped off easily. Once most of the stump is chopped off you can just dig up and dispose of the roots.

10. For your Houseplants

House plants are often victims of lesser sunlight which may cause them mineral deficiencies. Epsom salts is really gentle on plants and it is used to improve the nutrients intake of the beautiful potted plants that you keep indoors.

Mix two tablespoons of Epsom salts in a gallon of water and using a spray bottle to drizzle the solution on the leaves instead of the roots.

You could also add the salt directly to the soil, one teaspoon of Epsom salt for each foot of the houseplants height is an approx measurement for doing this. Apply any one of these methods once a month and watch the plant grow bushier and vibrant over time.

Some Other Garden Hacks to Try with Epsom Salts

Weed Killer – Mix 2 cups of Epsom salt with a gallon of vinegar and some liquid dish soap. Now using a spray bottle to drizzle the solution over the affected area.

Removing Splinters – Removing splinters is not easy nor is it pleasing to have a splinter. Mix 1 tablespoon of Epsom salt in a cup of water and apply the solution over the affected area. You will notice that soaking the splinter affected area will make removing the splinter easier.


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