Maybe it happens every year, but I’ve never noticed a second blooming of magnolias before. These pictures were taken on August 1st on two different trees in downtown Brighton, Michigan. Normally, these trees are show-stoppers in early spring when the blooms open before the leaves unfurl.
The trees weren’t covered with flowers during this second (or maybe very late first) blooming but each had a scattering of opening buds. I couldn’t find any definitive references online, but apparently some of the 210 Magnolia varieties do bloom in (or into) mid-summer. Interesting.