Something is evidently eating the leaves unless those are shoots that grew but never leafed out. If those stems have leaves you need to find the insects that are eating them and then we or someone locally can make a control recommendation. If those shoots grew but never leafed out I suspect your plants were damaged by some type of weed killer used around their area. They will recover from this in time, but there is nothing you can do for them.
Thanks for the question. Please stop in again soon!
Q&A Library Searching Tips