I couldn't believe it when I saw it yesterday either. Never before!!
There are two blooms on two different branches of the ROS, too. Very weird.
I associate things with school schedules. Like the caterpillars ate all my fennel the first week of August, I'd watch them as I went to the beginning of school. That's when the ROS bloomed too. The end of May when school was out, my daylilies would start to bloom. Never any earlier till now. And during spring break, the second week in April, the wisteria bloomed. Always.
In checking this blog, this year is wayyyyyyyyyyyyy off schedule.
Of course we've never been in drought conditions in May either.
Thanks Vic about the 'glow'. That was a little weird too. Kinda like the sun was tilted or something.