Autumn sown Salvia seedlings
I’m growing some salvia viridis blue seeds in my unheated greenhouse. They are doing really well and about 2 ins tall. They’re in a seed tray.
Should I pot them on and leave in the greenhouse over winter? if I leave them in the tray I think they will get leggy.The advice on the packet says cover seedlings if planted out or keep in a cold greenhouse, but nothing about putting on.