I have a cranium lily in a pot. The leaves are variegated lighter green and white. It is about 32"tall and flowers periodically. A rust colored fungus(?) has developed at the base of some leaves and has moved outward about a third of the way to the leaf end. Beyond a poor appearance cannot determine what, if any, damage may be occurring. Will appreciate any information. J.Cannon Ponce Inlet, Fl.
Crinium Lily -Desease
Certified GKH Gardening Expert
Rust fungus is a difficult issue to resolve, after it has set in.
Removing the diseased leaves and disposing of is the first step.
Continual treatment with Neem Oil is a treatment that I use in my own garden.
Here are some links with more information.