I purchased a "GREEN FILIGREE LACE" this past March. At the time there no buds but it seemed apparent which branches were alive i.e. tinged with red (see picture) and which were dead i.e. they were very grey. I put the tree in the ground about 4 weeks ago and it is now leafed out (see picture). But there are several of what I think are alive branches but are still leafless and have no leaf buds :(. Do I bite the bullet and just prune back these many branches or are there reasons to wait?