These pretty flowers looked sort of familiar, but I never would have thought they were fireweed, except that the flowers look very similar with a zygomorphic arrangement, kind of half-flowers with four petals on top and none below, with long white-turning-pink stamens drooping down, longer stamens than what I'm seeing on fireweed photos. Petals are pale pink with beautiful darker pink veining. And the habit is kind of wrong for fireweed - no more than half a meter tall in a nice rounded clump. They are definitely part of an ornamental planting in front of an apartment building. They look like they belong in a rock garden. Can they be Chamerion?
Thank you! Gaura lindheimeri. I have heard the name, but it doesn't stick. And I don't remember what the flowers look like either. At least I was in the same family - Onagraceae. Wikipedia says they're known as beeblossoms.
