A tree in the making???

Good morning. My mother's worried about a plant she's just spotted in her garden. Thinks it may be a tree from next door that's seeded. Can anyone confirm her suspicions?

Her grateful thanks for any replies.

 

Hmm!
It looks like a very woody wallflower to me.
Erysimum. Possibly one such as Erysimum Bowles mauve.

http://www.google.co.uk/search?q=Er...w&biw=1376&bih=663&sei=tIlUT9TvKeG90QX11ajsCw

 

I think Silver surfer (as usual ) has nailed it. I wouldn't mind a tree like that.

 

I agree that Erysimum Bowles is a good bet. They have always been in my garden and seem to flower continually. They become a bit leggy and woody after a few years - but are very easy to propagate from cuttings.

 

Thank you all very much.