Larch still Dormant

Hey all.
I’ve got an old larch (American) that was potted from a grow box (15ish years in the box) to container last year. It pushed strong until summer dormancy (at that point I did some minor pruning), then turned gold and dropped needles as usual. We got an early spring in WI this year and it hasn’t pushed any new growth yet. A small removed twig was still bright green on the interior, but I’m getting anxious. I’m not sure if I’m overreacting (don’t remember if this specimen was a late mover or not :man_facepalming:t2:).
Is there anything I can do to help max it’s chances at coming out of dormancy?

Keep branches from drying out. Patience.