[arugula]

The first looks like some kind of mint to me 

Sure it isn't basil? 

[mumofstig]

quite sure   

[arugula]

 

[tosca100]

Last photo looks like ground elder.  Now that IS a weed and quite difficult to get rid of.

I have resorted to using chemicals in the garden to get rid of it(luckily do not have it on the allotment)

Aparently you can eat ground elder.

[snowdrops]

I've just seen something very similar to the 2nd photo-anemone what do the rest of you think? I did think it looks familiar but then I did think the 'ground elder' did as well.

[sarajane]

Last photo looks like ground elder.  Now that IS a weed and quite difficult to get rid of.

I have resorted to using chemicals in the garden to get rid of it(luckily do not have it on the allotment)

Aparently you can eat ground elder.

You wouldn't want to eat mine after it has been 'zapped'

[CapeTown-dude]

Is the plant in the very first photograph not an Aconitum (Monkshood) of some variety?