posted 5 years ago
I’ve had similar issues with bell peppers: they don’t want to set fruit and if they do they rot on the plant before they are near ripe. I try to water infrequently like you said (weekly and deeply until the monsoons start).
To add my experience to the mix, I also grow chiles every year and they grow great! No issues surviving, setting fruit, even drying on the vine! Morphologically, they are long and skinny; maybe that’s the difference? I bet, though, that it’s simply that the chiles I grow are more locally adapted to desert living and therefore able to withstand the abuse that the environment and I can dish out, but the bell peppers are adapted to some well-irrigated, fertile California soil.