Now I've had a think I have seen a hermie outside. Years ago a mates older brother used to grow heaps in their backyard. Was great we always had heaps off good weed off him for fuck all!
Anyway he had a plant in a pot on their verandah that budded and he went overseas for 6 months and just left it. We watched it for about 2 months by then it was at least May and we started picking buds off it. Over the next few weeks it began to grow seeds and the buds we picked became more and more seedy. All the other plants were long gone so it couldn't of been them. I was 15 or 16 at the time so had no fucking idea about how plants worked and didn't notice any

but obviously it must of had them to pollinate its self because the rest of his plants had gone months earlier. I think most plants if just left too long will throw

in an effort to keep their genetics going! So like I said maybe yes all female plants can hermie or maybe only some can. I don't know!