Indoor pepper plant dying
I've had this store brand pepper (Kung Pao pepper) in this pot since I got it, about 7 months ago. It had been broken right above the place where it started branching, but seemed to heal and do ok. It's also planted deep.
It's always grown very slowly, going from 3" right after planting, to the 5" it is now. It was an outdoor plant during the summer, and did perfectly well, aside from the slow growing. Got well over 20 full sized fruit off of it, coming on at different times. When the weather got cooler, I brought it in, and keep it in a South facing window where it gets tons of sun. In the last couple months though, it just has not been doing well.
First there were discolored leaves with purple stripes. Then aphids. And now, leaves are turning brown and dropping, even what should be new growth. It just looks really bad right now.
It's my first pepper plant ever, I'd really like to save it. How can I do this?