I have planted showy pink primroses, but on the first two plants around the base, the leaves are turning yellow and are wilting. Is this a result of root rot? The soil is sandy and dries out easily. I've fertilized, but no mulch. What should I do?
Yellowing Leaves on Showy Pink Primrose
Certified GKH Gardening Expert
This often signals stress of some kind, with many causes.
These articles will help determine the cause:
You may want to consider amending the sandy soil. This article will help with that: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/amending-sandy-soil.htm