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A plant with a magnesium deficiencyIf the soil is deficient in magnesium, the addition of Epsom salt will be a benefit. Epsom salt contains magnesium which is used by plants for photosynthesis. - Sulfur, another ingredient in Epsom salt, is important for plants because it helps them prepare for the cold weather, by making them hardier. It also assists in seed growth. The addition of sulfur to a soil deficient in it is beneficial for plants.
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Epsom salt may change the soil's chemistryAdding Epsom salt to soil that already contains enough or even high levels of sulfur and magnesium could result in an imbalance of soil chemistry. When the chemistry of the soil is out of balance there is a danger for a reduction of oxygen available to the roots of the plant. -
Rose gardners use Epsom saltRose aficionados swear by the use of Epsom salt in the garden. According to Erica Glasenor, a horticulturist, adding 1 tbsp. of Epsom salt to a gallon of liquid fertilizer will aid in the production of more canes on your rose bushes and more roses. -
A healthy pepper plantPepper and tomato plants love magnesium, especially when they are in blossom. This is a good time to apply Epsom salt by adding a tablespoon to a quart of water and spraying it on the plants until they are soaked.
