epsom salt for roses - Knowledgebase Question

queen creek, Ar
Question by shoste
February 20, 2011
I was told to use epsom salt around the base of my est. roses ,how much and how often? Thanks Steve,Phx. Az.


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Answer from NGA
February 20, 2011

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Magnesium and sulfur are the two major components of Epsom Salt. Although magnesium and sulfur occur naturally in soil, they can be depleted over time. But unlike most commercial fertilizers which build up in the soil over time, Epsom Salt is not persistent so you can't overuse it. Tests by the National Gardening Association confirm - roses fertilized with Epsom Salt grow bushier and produce more flowers. You can use epsom salts on 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.

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