Q.Split Jap. Silkleaf Maple Tree From Blizzard
I have a grafted silkleaf maple tree that is 4 years old and was doing great then we got hit with a blizzard that dropped 4 ft. of snow on top splitting all the main branches away from the tree but still attached. Tree is dormed and has dropped all folage for winter
Certified GKH Gardening Expert
Bolting a split like that is the common solution for this.
This article, in the section on split forks, will have steps for using a bolt to repair the split:
But, that being said, it does not always work. You may want to bring in a tree specialist to look at it to help increase you chance of success.