Q.What is wrong with my Marigold plant what should I do?
My marigolds were doing fine in spring and early summer but recently I observed them drying up like the picture shown. One plant completely dried out and other one is drying from bottom. I live in texas so it is too hot and humid here temperature 40-45 degree celcius. But it also rains frequently. Is this due to root rot or heat. Please give me the solution to this problem
Certified GKH Gardening Expert
They tolerate heat just fine, but that soil looks VERY wet. Does that container have drainage to allow extra water out?
I can't tell how big the pot is but if you live in Texas you probably need to water twice a day. However, the soil looks saturated. Let the soil dry between waterings. Try cutting back the dead looking foliage and see if it rebounds. If not, most likely a fungal infection has set in. Curing those plants will not be an option. It would be best to get fresh soil and try again with new plants.
This article will help you to grow Marigolds: https://www.gardeningknowhow.com/ornamental/flowers/marigold/growing-marigolds-in-containers.htm