Second Hand Brassiccas

[tilts]

This is the first year of my allotment owning venture and i have approx 10 brassicas growing, obviously left over seeds from the chap before me.  There was a couple of purple sprouting in situ when i took over.
They look really healthy, can i leave them in?  Will they mature?  Should i move them?
Thanks in anticipation.......  ???

[tilts]

[tim]

Hopefully, they will give you shoots in Feb-Apr - depending on type - BUT, since there are only 2, you'll be pushed to get a meal off them?