Our rhubarb has flowered for the first time. We spotted the huge flower bud a week or so ago and had the sharpened secateurs at the ready. Conventional wisdom dictates that it must be decapitated immediately otherwise the plant will be weakened by the energy required for seed production and hence be less productive.
But we were curious. And the huge flower bud has been pushed skywards on one of the thickest flower stalks we’ve ever seen and a flower resembling mini red cauliflowers looks set to emerge. (The photo above was taken on a phone so it’s not as clear as it might be.)
Flowering can be a response to rhubarb undergoing some sort of stress; too cold, too hot, not enough water, starved of nutrients. Anything that potentially shortens its lifespan so it sends up a flower to reproduce. I suspect that in our case the flowering is likely to be due to the plant maturing. We inherited the rhubarb when we took on the allotment so I have no idea how old it is or even what cultivar it is.
So perhaps it’s time to think about dividing the rhubarb crowns next winter to rejuvenate them. In the meantime, the flower stalk is on the compost heap.