It looks to me like veronica--also called speedwell

It's hard to tell because of the glare.I will take a wild guess and say wisteria,but that's a vine and from the picture you can't see the form so like I said just a crazy guess.

not familiar with plant in your area, but please also consider Stachytarpeta sp.

It's probably Stachytarpeta. I have two varieties of Veronica and this plant looks very different. My Veronica is starting to go to seed and this plant is just starting to bloom. Individual stems, multiple from each plant center, grow up to 2.5 feet tall with a single 'plume' that starts to blooms one tiny flower at a time along the stalk similar to liatris blooms. The leaves are round and scalloped. No, not a vine. Very stately. Thank you for your help.

After seeing another post, it could also highly possible for verbena stricta, at least it is clear that flower structure is in Verbenaceae

Yes, I think it's Verbena Stricta. For several weeks I wanted to call it Verbena, but when I did a general search those Verbena looked nothing like what was growing. So it's really a memory problem--I have to remember the entire name next year! Thank you. Heidi