yellow leaves on tomatoes

Asked June 18, 2018, 1:56 PM EDT

I've been told that epsom salts will help prevent yellowing leaves on my cherry tomato plant. It has a few green fruits, lots of blossoms but generally does not look healthy and growing. Any truth to the epsom salts?

Howard County Maryland

1 Response

Epsom salts can be used to increase magnesium levels in soil and can be used if a soil test indicates that magnesium levels are low. Otherwise, you can save your money. There can be other causes for yellowing leaves on tomato plants (nitrogen deficiency, diseases such as early blight, insect damage, etc.). Did you amend your soil with compost or add any fertilizer when you planted your tomatoes? After the first fruits appear, you can side-dress your plants with 10-10-10 fertilizer.
You can also send us photos of your plant if it has unusual symptoms and we can help to determine if there are any problems.