my neighbor and i have share a living fence, my arborvitae, 28 years old and trimmed to 8 ft and theirs a rambling yew of some sort. Over the years I've managed to keep the arbs healthy and full with deer fences in the winter but the neighbor just removed the yews and my trees are bare 4 feet from the ground up, next to where they were shaded by the over grown bushes. Is there any way I can help them fill out at the bottom? There are very few sprigs of life. Can I feed them this november so that come spring they get a boost and possibly strat new growth?