They look like Hazels, thanks to Squirrel Nutkin & his mates

I once spent a few years nurturing one in the mistaken belief it was a Kiwi I'd planted. SN had oiked my Kiwi out & stuck a hazel nut in there "for later"

Yes I also think they are Hazel trees.

lol Grandad g :D

Thanks grandad g , SN... lol and hywel i wasnt sure tbh ,i like the leaves and i believe catkins show when there mature and hazel nuts.I think i will pot them and see what happens.Thanks both for your advice.
Keep safe .

They are definitely Hazel and not necessarily hidden by the squirrels. We have mice which hide so many of them in flowerpots that it seems that every empty pot has a Hazel growing in it. Beautiful, useful native shrub or tree. It can become very large, but is easily pollarded.

Thanks Honeysuckle.

Actually if you have space [ I don't] having them growing would be handy for ready supply of twigs / sticks for peas & beans

My daughter has some in her garden, but never gets to eat any nuts because the squirrels are there first