It looks to me very much like a seedling of Russian Vine … Fallopian Baldschuanica … also known deservedly as Mile a Minute Vine.
Personally I would dig that out and make sure you get all of the root. I have seen it swamp a farmhouse let alone the garden. It is always a rampant grower.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
It is buckwheat and is probably from bird seed. It's included in many annual wildflower mixes and isn't something to worry about.
Pic trimmed.
thevictorianzFH0qqPW thank you. So it is Fagopyrum esculentum.....common name buckwheat. I could see 5 petals but hadn't seen this before. ... I wasn't happy with Russian vine.
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There’s a glitch on the site which sometimes uploads pics sideways so I’ve turned it around for you so we can get a better look.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
I hope I'm wrong
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Horrible stuff
Is there a garden on the other side of the wall?
I live in west central Scotland - not where that photo is...
I live in west central Scotland - not where that photo is...
Pic trimmed.
thevictorianzFH0qqPW thank you.
So it is Fagopyrum esculentum.....common name buckwheat.
I could see 5 petals but hadn't seen this before. ... I wasn't happy with Russian vine.
https://www.google.com/search?q=fagopyrum+esculentum&rlz=1C1CHBF_enGB785GB785&sxsrf=ALeKk03oa_nP78r_vdj67uMfx10oi7y1Gw:1629559752789&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiu5dGRt8LyAhVE8hQKHSr7BtgQ_AUoAXoECAEQAw&biw=1280&bih=569