Brown Spots on Leaves
I have two Citronella plants. They were very healthy, but lately there are brown spots on their leaves. What is this and how do I fix it?
Are you using regular tap water? if so, it could be the chlorine in that causing your problem. They need to have good drainage and should be allowed to dry out between waterings. They like a high nitrogen and phosphorus fertilizer for optimum growth. Citronella don't have a lot of insect pest problems, so I don't think that is what's causing the problem.