I let a Victoria rhubarb bloom one year. The bees loved it. The next year I dug up and gave away well over 100 rhubarb seedlings.I have one rhubarb plant growing very well, one that is an up and comer, and the third one is tiny.
To be fair, I thought the tiny one had crown rot last year and dug it up. So this is the bit that I didn't get out. You go, little rhubarb!