The Q&A Archives: Verbena leaves

Question: I have a hanging basket of verbena and the leaves are turning dark purple, why?

Answer: There are several possiblities: 1) cold nighttime temperatures can turn the foliage purple; 2) a nutrient deficiency can turn the leaves purple; 3) feeding by an insect called a midge.

If the problem is weather related, it will outgrow the purple leaves. If it's nutrient deficient, you can feed with a complete fertilizer; 3) insect problems can be treated with an insecticide.

Best wishes with your verbena plants!

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