What to do: Sagging JM branches with new growth?
I have two regular, green Japanese Maples that are growing very quickly and the branches are sagging with the weight of the new leaves. I haven't given them any fertilizer. In the past, I've used stakes and ties to keep them upright. One is about 7' and the other about 5' (the smaller one isn't as bad). I may be able to tie up the large one for one more year with bigger stakes, but that might be the last time because of their height.
Can someone tell me what would be the best thing to do with these drooping branches, both now and in the furture? I've uploaded a photo with a link below. Thanks for your help.
Here is a link that might be useful: