Q.What is causing my Fragapani (Plumeria) potted plants to get yellow leaves that turn brown and drop off?
I planted 3 Fragapani (Plumeria) in pots last summer. The were on a raised site with full exposure to the sun. The plants dropped leaves very quickly. They turned yellow and dropped off. I am in zone 10 in Southwest Florida. Because it rains almost day in the summer, I thought this was a case of over watering. In late fall, I cut them all down and left them in the same location for the winter. This spring, new leaves grew and they were doing well. Two weeks ago, I moved them to a shadier site because it is protected from the rain. Ii have been watering them by hand using a meter. I have been trying to discover the right level to water them too. When the first plant had a few yellowing leaves, I cut back on the water some. Now all three have yellowing leaves. No pictures as already took all yellowing leaves off the plants. Can you help me?
Certified GKH Gardening Expert
This is most likely a fungal infection from overwatering. Moving the plant will not treat the issue, but only spread it to multiple spots. In order to treat it, you will need a fungicide. This article will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
This article will help with growing plumaria plants: https://www.gardeningknowhow.com/ornamental/flowers/plumeria/growing-plumeria.htm