Passiflora: yellow/dying leaves
I have a Passiflora Alata (Ruby Glow), which is potted on the side of my house. It gets alot of sun and I water it about once per week. It does well for a short time in early summer (about 1 month), then many of the leaves turn yellow and fall off. The leaves that remain green often curl. The plant just doesnt look healthy. I dont see any pests, but I have sprayed it as a precaution. What am I doing wrong?