How to Use Epsom Salt for Trees: Benefits, Care, & Blog Guide
Epsom salt (magnesium sulfate) is a hidden secret among arborists and home gardeners. Made up of magnesium and sulfur, it provides vital macronutrients that help trees absorb nitrogen and phosphorus, boost chlorophyll production, and maintain lush green foliage.
How Epsom Salt Benefits Fruit & Landscape Trees
Why Do Trees Need Magnesium & Sulfur?
Fixes Yellowing Leaves: Magnesium deficiency causes leaves to turn yellow between the veins while the veins stay green. Epsom salt quickly restores leaf vitality.
Boosts Fruit Production: Fruit-bearing trees (like lemon, lime, orange, and apple trees) consume high amounts of magnesium. Adding Epsom salt boosts blossom production and yields sweeter, healthier fruit.
Eases Transplant Shock: When moving young saplings or planting new trees, an Epsom salt drench reduces shock and speeds up root establishment.
How to Apply Epsom Salt to Trees
Root Drench (Soil Application):
Mix 1 to 2 tablespoons of agricultural-grade Epsom salt per 1 gallon of water.
Pour the solution around the drip line (the circle underneath the outermost branches) once a month during the active growing season.
Foliar Spray (For Quick Absorption):
Dissolve 1 tablespoon of Epsom salt in 1 gallon of water.
Spray directly onto tree leaves in early morning or evening to prevent leaf scorch.
Dry Soil Broadcast:
Sprinkle 1/2 cup of Epsom salt per 100 square feet of soil under the tree canopy, then water thoroughly.
