Gives me hope for mine. they are almost gone for this year. The leaves are all either turning brown or starting to fall over. I plant them in the ground though.

I've been growing them for around 10 year & will have to say that's weird

Your plants confused
LOL

1. Never had/seen one flower this late in the year
Mine all seem to flower around March - April

2. Also never seen one flower a 2nd time
Or
After making leaves

You have a freak
Kill it with fire
LOL

Wish they would bloom more than once
Or
That the flower would last more than a few days tops