I believe I received this from someone, not purchased. No clue what it is. Blooms mid-summer, about 3' tall. Any ideas? It's a perennial of some sort, not a shrub. I think this is year 2. The leaf edges got brown in late summer, likely due to water stress (I don't ever remember to water because 11 months of the year I don't have to...)

bumping

Some kind of vaccinium, perhaps?

Do you have a picture of the entire plant?

Persicaria campanulata.

Beautiful plant! I'd love to come across this one to try!