I've grown dahlia from seed and they all look very healthy but do seem to be quite leggy.
I've grown them in the conservatory where it does get very hot when when the sun shines. Would it help if I pinched them out? Or should I move them outside into the plastic mini green house?
Pinch the tops out, move them somewhere outside during the days for a week to harden them off,and in the mini greenhouse at night. it should then be safe to plant outside.
Yes, I'd agree. They need to be going outside now to start flowering soon.
Hello again Alina. Good to see you're still here on the forum
I've pinched out all the tops and put them outside so hopefully that'll do the trick.