Magnesium Sulfate (Epsom Salt)


Magnesium Sulfate (Epsom Salt) is 100% water soluble and when used with Masterblend (4-18-38) and Calcium Nitrate (15.5-0-0) (sold separately), you get a super charged solution that contains all the macro and micro nutrients your plants need to thrive.

Magnesium Sulfate (AKA Epsom Salt) helps seeds germinate, makes plants grow bushier, produces more flowers and increases chlorophyll production.  Magnesium is also one of the macro-nutrients responsible the taste and aromas from your favorite herbs.

A Magnesium deficiency shows up as yellow leaves with green veins.  When this starts, add more Magnesium Sulfate to your nutrient solution, or spray your plants with a foliar spray of 1 tsp dissolved into 1 litre of water.  Magnesium deficiency is commonly confused with an iron deficiency.

Be sure to test water and determine the lack of nutrients prior to treatment!

Magnesium Sulfate (Epsom Salt)

For Use in Hydroponics

  1. Place 25 litres of warm water into a container
  2. Add 16 grams Masterblend into the water and mix until completely dissolved.
  3. Add 8 grams of Magnesium Sulfate into the water and mix until completely dissolved.
  4. Add 16 grams of Calcium Nitrate (15.5-0-0) into the water and mix until completely dissolved.
  5. Nutrient solution is now ready for use.

Other Uses

  1. Houseplants: 2 tablespoons per gallon of water; feed plants monthly.
  2. Roses: 1 tablespoon per foot of plant height per plant; apply every two weeks. Also scratch 1/2 cup into soil at base to encourage flowering canes and healthy new basal cane growth. Soak unplanted bushes in 1 cup of Epsom Salt per gallon of water to help roots recover. Add a tablespoon of Epsom Salt to each hole at planting time.
  3. Shrubs (evergreens, azaleas, rhododendron): 1 tablespoon per 9 square feet. Apply over root zone every 2-4 weeks.
  4. Lawns: Apply 3 pounds for every 1,250 square feet with a spreader, or dilute in water and apply with a sprayer.
  5. Trees: Apply 2 tablespoons per 9 square feet. Apply over the root zone 3 times annually.
  6. Garden Startup: Sprinkle 1 cup per 100 square feet. Mix into soil before planting.
Weight N/A
Dimensions N/A

550g, 1.5 kg, 2.5 kg, 5 kg