I have a Montana clematis climbing over a pergola it flowered in March again in July and its flowering again right now. I was under the impression it only flowered once in spring. Can anyone tell me what's going on.
They do sometimes produce a few flowers later on. It’s a bit late for them to do it now, but this has been an odd year and a lot of plants are responding to temperature and conditions rather than time of year.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Mine is coming back now too.