The conclusion from Dr. Chalker-Scott's review of literature (as she says, "scientific and gray") on Epsom salts. The embedded link will take you to her WSU page with connections to her other papers on gardening myths.
"The Bottom Line
The urge to use common household products as garden fertilizers and pesticides is compelling
for many consumers who want simple, cheap approaches to landscape management.
However, the use of any chemical in a landscape should be thoughtfully considered:
o Is it necessary?
o Can it cause damage?
The science behind the use of Epsom salts is only applicable to intensive crop production in
situations where magnesium is known to be deficient in the soil or in the plants. It is
irresponsible to advise gardeners and other plant enthusiasts to apply Epsom salts, or any
chemical, without regard to soil conditions, plant needs, and environmental health."
(A complete bibliography of the scientific and gray literature on Epsom salts is available by
email from the author.)
Dr. Linda Chalker-Scott, PhD
Associate Professor and Extension Urban Horticulturist
WSU Puyallup Research and Extension Center
7612 Pioneer Way E
Puyallup, WA 98371
Phone: (253) 445-4542
Email:
[email protected]
URL:
http://www.puyallup.wsu.edu/~L...
