My homestead purple blooms almost all year. Or from about March - November anyway. And tries to take over the whole garden.
Dana

My Homestead blooms off and on all year with a big flush right now and then pretty steady through the summer and fall. I keep it deadheaded and shear it back when it gets out of bounds - in fact just yesterday I did a real hack job on it because it was goobling up my gerber daisies....

Lynne

I had Blue Princess one season. Bought it in July and it bloomed until the end of the season but didn't come back for me but that's not unusual for me either. I don't have the knack for the spreading perennial ones evidently. I thought I had lost my Blue Mist from last year but it appears that it's trying to come back from the roots- away from the original plant. Maybe they're seedlings? They don't look like V. bon seedlings anyway so I'm hoping.

I've had homestead purple for several years and it blooms year round, just not as prolific Dec thru Feb. I also have the white and light pink that have the leaves like the homestead purple and they both had some blooms all winter.
My purple also spreads wildly, but the pink and white don't spread nearly as fast.

Sandi