Flowering rhubarb

It’s unusual for such a young plant to seed (flower) a year old is young but definitely the best way is to cut it off you don’t want it bolting as it will put all it’s energy into that flower and subsequent seeds I don’t think you can stop it as it’s a natural thing for it to do and some varieties flower more easily than others maybe this is why with yours

Well you learn something everyday. I had no idea rhubarb could get a flower. Can you grow new ones from the seeds ?

I’ve already cut some off of my Rhubarb this year I’ve no idea if you are able to cultivate from seeds.

I should add none of my rhubarb has ever flowered

I think rhubarb may prefer a wettish soil to one too well drained. I had some in a dry spot and it flowered, but after I moved it to damper spot, it's doing much better and hasn't flowered again.

I have clay soil in my raised beds helped along by my compost. My rhubarb must be about fifteen years old it’s never flowered.
Usually grown from crowns but can be grown from seeds you could let the flower grown cut it off and dry the seeds. That’s what I am doing now with my purple sprouting broccoli.

This is my second rhubarb plant in this house.
The first one I tried literally drowned in the clay even though I'd added compost and grit, hence the raised bed for this one.
Trial and error as always with gardening!

My MiL's well-established rhubarb flowered every year - beautiful, huge creamy white flowers. Hers grew on top of an old compost heap.

I have seen rhubarb seeds in packets for sale so it must be possible to grow from seed, at least in theory. I've never tried. I feel though that, like snowdrops and bluebells, it's probably better to start off with a plant 'in the green'.

Thank you for your ideas and happy gardening!