I planted a few cornflower seedlings a month or so ago and now they've gone mad. Can I successfully move some of them to another spot if I dig up a clump of them?
I'm fairly sure you could do that Jo.Make sure you water them in well in their new position. I'm assuming these are the annual Centaurea Cyanus? In which case they will die off come autumn after going to seed anyway
As long as you take a good clump of soil with the roots you will probably be fine. Water well before and then water the moved ones every day for a week or so.