Flower ID please.

[ThreeKneeRepeater]

Hi I’m on holiday on the east coast of England and this yellow flower is everywhere.
Can anyone tell me what it is as it’s really pretty?

Sisyrhynchium striatum

Yes, sisyrynchium striatum. Lovely, but I find it dislikes cold, clay soil.

Thanks both. That’s a fancy name. Does it have a common name?

It's common name seems to be "Sissy-rinky-whatsname, you know that tall spiky yellow thing"!

According to Google it is supposedly 'pale yellow-eyed grass', but I've never heard anyone call it that.

Yes, it does seem to be one of those plants which is better known by its formal name than its common name.

It self seeds like mad when it's happy. There's also a smaller blue-flowered species whose common name is, funnily enough, blue-eyed grass.

It grows like a weed in my clay soil I put 10% of the seedlings in a nursery bed give 10% away free on fb and bin the rest and it's still inly just controllable but I love the way it turns it's face to the sun

It's a great plant in my opinion. It's easy to grow, spreads easily and looks great. Once you have an established plant, it's really simple to pull bits up and use for filling gaps round the garden. The best thing though is it's easy to pull up and get rid of if you want to, it doesn't have deep roots that you'll be digging out for ever after.