I have a small sprout (30‒40 cm) of some species of spruce tree that is native (or at least welcome) to the Rocky Mountains of North America (purchased from the local Fish and Game Department’s nature centre). It is still in the small plastic bucket, and I want to transplant it in the roomier container.
When is it okay to move it? Is it too late to move it this winter (the daytime temperatures are consistently above freezing already)? When is it even normal to move perennial plants (trees) in general? I thought winter is a good time, since the plant is dormant, just like for trimming. Is it possible to move it more than once? I do not have the land to plant it in yet, but I want to move it from the medium-sized tub someday as well, would that be not much of a shock? Is there minimum time in between such moves?