Q.aspen tree not leafing this year
I have a beautiful aspen tree in my backyard that has leafed every spring. It is now late June and it has not leafed. There are brown buds on all the limbs. Lower limbs some are dead, but some bend and are still supple. What should I do? Thank you.
The brown buds sound as if they are damaged, perhaps by a late cold front. I would snip off the dead growth so that new growth can come through. For additional help with non-leafing of trees, this article has more information: https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-leafing-problems.htm