Epsom salts are a great organic mineral supplement for your garden. They’re inexpensive and safe for your plants, pets and kids.

For hundreds of years gardeners have used Epsom salts to improve fruiting and flowering of all sorts of plants. It’s known to enhance colours and textures and produce stronger more bountiful crops and blooms. They are especially beneficial for improving your tomato yield and other fruit harvests.

The key benefit of Epsom salt is hydrated magnesium sulfate. Typically Epsom salts contain 10% magnesium and 13% sulfur.

Magnesium is vital the production of chlorophyll and ensures the healthy growth of fruit and flowers as well as seed germination. It also enhances the uptake of nitrogen, phosphorus, and sulfur. Sulfur is fundamental to the production of vitamins, amino acids (protein), and enzymes.

Epsom salt crystals break down into water and because it’s pH neutral, the magnesium sulfate doesn’t harm your soil.

Tomato Crop Epsom Salts

When should your use Epsom salts on the garden?

Incorporate Epsom slat into the soil at time of planting to give your garden a powerful boost from the get go. Magnesium assists seed germination while strengthening plants’ cell walls, which produces stronger, robust seedlings. Mix one good heaped tablespoon of the salt with some soil at the bottom of the seed hole. Then cover with a shallow layer of clean soil before dropping in your seed or transplanted seedling.

Boost your harvest with Epsom salts

Incorporate diluted Epsom salts into your watering every two to three weeks. Dissolve a heaped tablespoon of Epsom salt with every 4 litres of water and spray directly onto foliage.

Because it increases the chlorophyll levels in plant cells, regular spraying of your tomato bushes and other fruiting plants with Epsom salts will yield a bigger harvests. Tomatoes and capsicum in particular will benefit from a good feed of Epsom salt because they tend to produce large amounts of fruit compared to the relatively smaller size of each plant.

Spray Tomato Plants With Epsom Salts

Use Epsom salts to curb yellowing

Many gardeners experience yellowing leaves on their tomato plants, especially during the fruiting season. The primary cause is magnesium deficiency as available magnesium is diverted to produce fruit. Epsom salt is a great way of correcting magnesium deficiency. Dolomitic lime is another way to add magnesium to your garden, although it takes longer to break down. Diluted Epsom salts sprayed directly onto the plants enables plants to absorb magnesium quickly and swiftly correct the deficiency.

Many different plants are subject to yellowing from magnesium deficiency, from flowering bushes, ferns, lawns through to a whole range of garden vegetables.

If application of Epsom salts doesn’t alleviate yellowing, you’ll need to investigate possible other causes such as: fungal disease or aphids.

Epsom Salts curb yellow leaves on tomato

Rose gardeners also swear by Epsom salt

Due to the boost it gives to chlorophyll production, Epsom salts also help your roses produce large numbers of sizable intensely coloured blooms. Roses will benefit most from Epson salt if you apply:

  • At the time of planting (or transplanting)
  • At the first sign of new growth
  • When in bloom

The increased levels of chlorophyll will also give the leaves on your rose bush a deeper shade of green so your blooms ‘pop’ from a dark backdrop.

Roses bloom with epsom salts

Purchase Epsom Salts here.