Allotments 4 All

This is definitely growing from seed, but what is it?
Leaves are about 3 cms long at this stage. the stems are slightly hairy and have a pink tinge.

If it is anything like this, just get it out of the ground, dig, dig, dig until there is no trace at all and hope it isn't what it sounds like, pink hairy stem would worry me.

We have been trying to remember what was growing  in that part of the garden when we moved in. Only Bindweed, Herb robert, Lythrum and a little white thing spring to mind.
so what is your leaf from?

Ssssh, Fallopia japonica. Not being there to see it, I could be just over reacting. We had an infestation on some council land years ago, cannot remember what the juveniles came up like. Totally different from the more mature shoots. It does blow in from seeds.

Definitely not that. There is none anywhere near here and I have seen it before so know what it looks like at all stages of its growth.

Just been identified as baby Garlic Mustard, Jack by the hedgerow. Alliaria petiolaris.

I'll second that... Garlic Mustard. You will know from the smell, the only brassica that smells like garlic! The taste is a bit hot like leaf mustard.. small amount nice in early salads. Even if you don't eat it leave a little as it is the food plant for orange tipped butterflies...

Thinking back there was a lot of it in this area when we began clearing out the Bindweed and conifers. It is one of the most common weeds in the local hedgerows. Having said that on my morning walk today I found no seedlings near any of the mature plants so not able to compare.