I think it tends to bolt more reliably once it's well established. My father and grandmother both had big plantings of rhubarb, and they would bolt by midsumme

I think it tends to bolt more reliably once it's well established. My father and grandmother both had big plantings of rhubarb, and they would bolt by midsummer. I don't know why we never harvested it after that, maybe because it wasn't as sweet? Not that it was ever particularly sweet in the first place, but for all that, so delicious.