Quick answer
Epsom salt provides magnesium and sulfur for plants. It is particularly helpful for tomatoes, peppers, and roses when soil tests show a deficiency. Dissolve 1 tablespoon per gallon for foliar feeding.
Key takeaways
- Epsom salt provides magnesium and sulfur for plants. It is particularly helpful for tomatoes, peppers, and roses when soil tests show a deficiency. Dissolve 1 tablespoon per gallon for foliar feeding.
- Epsom salt provides magnesium and sulfur for plants.
- Soil drench: 1 tablespoon per gallon of water monthly during growth.
- Tomatoes, peppers, roses, and lawns in sandy soil often respond well when magnesium is low.
Epsom salt provides magnesium and sulfur for plants. Particularly beneficial for tomatoes, peppers, and roses. Dissolve 1 tablespoon per gallon for foliar feeding.
Why Plants Need Magnesium
Epsom salt provides magnesium and sulfur for plants. Particularly beneficial for tomatoes, peppers, and roses. Dissolve 1 tablespoon per gallon for foliar feeding. Magnesium supports chlorophyll production. Yellowing between leaf veins on older leaves can signal deficiency.
Application Methods
Soil drench: 1 tablespoon per gallon of water monthly during growth. Foliar spray: same concentration, mist leaves in early morning. Avoid overuse, which can build up salts in soil. Epsom salt is magnesium sulfate, not table salt (sodium chloride).
Which Plants Benefit Most
Tomatoes, peppers, roses, and lawns in sandy soil often respond well when magnesium is low. Leafy greens rarely need extra magnesium. Always test soil when possible before amending.
Cautions
More is not better. Excess magnesium can interfere with calcium uptake. Do not use Epsom salt as a general fertilizer replacement. Complete fertilizers provide nitrogen, phosphorus, and potassium that Epsom salt lacks.