Magnesium sulfate, commonly known as Epsom salt, can be a beneficial soil amendment for ferns when used appropriately. Applying a diluted solution can address magnesium deficiencies, which manifest as yellowing fronds, particularly between the veins. An example application involves dissolving one tablespoon of Epsom salt in a gallon of water and applying it monthly during the growing season.
Adequate magnesium levels are crucial for chlorophyll production, the pigment responsible for photosynthesis and healthy green foliage in ferns. Historically, Epsom salt has been employed in horticulture for its ability to enhance nutrient uptake and improve overall plant vigor. This practice stems from observations of improved growth in magnesium-deficient soils.
