Tomatoes do not need to be planted witih epsom salt. Epsom salt contains magnesium, which is a nutrient tomatoes need. But the Clemson Extension recommends not applying it unless a recent soil test shows a deficiency in magnesium.
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Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.