protect a young tree over the winter
HI. I recently dug up a sucker from a nearby tree that I like, it has prospered, and I am not sure what to do with it over the winter.
It's some sort of ash, but I can't find out yet exactly what. It has red cones in the Autumn.
It is now growing well in a 6" pot, is about 6" high above the compost level, and will soon need potting on into a bigger pot or tub.
Should I pot it on now, or wait until Spring, and ought I protect it over the Winter. I have an unheated greenhouse.
Thanks for any advice