What is this?

ilukemartin

I have removed a few already and was wondering what they actually are before I remove these last ones as they have arrived randomly. Thanks. 

yorkshirerose

Looks very much like Elder (Sambucus nigra) 
https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/a-z-of-british-trees/elder/

Asarum

Top one looks like an ash sapling to me.  Black terminal bud.

Lyn

Other Half says Ash saplings you can tell by the bark. 

ilukemartin

Yeah a lot of the buds where really black on the others, looked at a few google images after your suggestions and it looks like ash saplings. Thanks for the replies. 

Dovefromabove

Definitely ash tree sapling.