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Q.tomato plants

Zone Libby, MT 59923 | michael patrick shea added on June 14, 2017 | Answered

I bought three very vigorous tomato plants at Costco and they did well initially but now their leaves are turning a dark reddish purple color. Not wilting or dying, just turning purple. I’ve never had this happen before. Any ideas?

DLarum

Certified GKH Gardening Expert

Answered on June 15, 2017

It sounds like the start of a fungal disease, treat it with calcium or a fungicide and you can prune away the bad looking foliage. These articles will help
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/applying-calcium-nitrate-for-ber.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/pruning-tomato-plants.htm

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