Community Fencing

When our community was built, the developer placed a chain link fence on a berm and planted border shrubs to hide the fence. The fencing runs the boundary of about 40 homes and is on the homeowners property. Initially, the fencing and shrub care was handled by the landscaper, but that ceased about three years into the community's existence. Now the fence needs repaired and the shrubs need to be replaced as they are dying and the HOA is telling the homeowners that it is their responsibility since it is on their property. Is there any recourse in this case or do the homeowners just have to bite the bullet and replace the fence and shrubs?