My chrysanthemum is looking sick. Some flowers and some leaves are wilting...

Asked September 30, 2015, 10:38 AM EDT

My chrysanthemum is looking sick. Some flowers and some leaves are wilting and dying. It's not blooming in full like in past years.

Ramsey County Minnesota

1 Response

There are a number of reasons that could cause these plants to wilt. Overwatering could be one issue - with the heavy rains we've had this years some perennials have suffered root loss.

It's possible that your plants are simply overgrown for their location. Mums should be split every few years. New soil and fertilizer could help revitalize them.

Lack of flowering is occasionally a problem with mums. Possible causes include wrong cultivar selection; insufficient sun, fertilizer, or water; late pinching; root competition from nearby trees and shrubs; unusually hot weather (especially nights) in August, unusually cold weather in late August and September; and insect, or disease injury

Insect pests - aphids, leafhoppers. grasshoppers, caterpillars - and spider mites are relatively common on garden mums. Gray mold and bacterial leaf spot are common disease problems. Many grass and broad leaf weeds will be a problem in garden mum fields. Because pesticide labels change frequently, no specific chemical controls will be listed here. Check with your garden center.

I ho[e this is helpful. Please contact AaE again if you have further questions.