I bought a 3' bare-root tree this spring, and it has just now really started growing. It has probably been growing roots all this time, because it didn't have many when I bought it. The most vigorous growth is near the bottom. It has little branches coming out all over the trunk. I want this to be a small specimen tree, not a shrub, but multi-trunked like an river birch might be nice. I definitely want it open at the bottom and not all twiggy.
Do I need to leave all these new twigs for now and then start trimming it next year? I'm hesitant to remove any leaves this late in the season. I'm in the southern part of zone 4, which is pretty far north for this tree.
If I let it grow 2 or 3 trunks, will these be from suckers that come up from the ground next year, or this year's new twigs that are right at the ground level?
Thanks, regards, Bob