I have a clematis Montana which appears to be flowering. It flowered early this year I thought they only flowered once a year !!!!
I have a Primrose and a Rhodedendron flowering right now in my garden. Plants do strange things happen sometimes.
Have they been recently moved or disrupted in some way. (not that C montana is very moveable.)
I suspect that very wet spells or very hot dry spells at different times to normal flowering seasons may confuse the plant as to what season it might be.
They often flower again at this time of year flowerpower
The one I had in a previous garden did - every year.
My primulas often flower on and off all summer Iamweedy. It's quite common if they have the conditions they like. We have cool summers and lots of rain up here - so it's a regular event. It's been much drier this year, so they've been a bit more dormant, but ones that I recently split are flowering right now
One of my spring flowering Montana's didn't even bud this year which has me puzzled - unless it's been just too much rain and not enough sunny days at all. Everything in the same area is blooming away fine to normal schedule. Ah well. It seems to have been that kind of year. I have a rose which due to a tree has been stuck in quite deep shade this year and it has bloomed the best it ever has. But meanwhile, another lovely rose which is usually on it's second flush at this time hasn't had a single bud all summer and seems to have gone to sleep - and it gets around 8 hours of sun a day - although, we've hardly had sunny days to boast of and when there has been sun it has been accompanied by wind.Definitely something odd in this garden this year. Some of the sturdiest full summer blooming dependables have hardly bloomed at all - and the more difficult beasts have bloomed and are over more quickly than normal. Tiring stuff this gardening trying to work out all the elements which knock the timing off or when there are so many changes from the norm.