Don't get me wrong, I DO like my neighbor! I need a subtle, or soft way to fill in the space at my backyard boundary. All or most trees must stay. I'd love to have grasses, however, only the farthest back few feet behind the trees get full sunlight just after midday. Is that enough for them to thrive? What about soft shrubs under the shade trees? Willow? Other? As you can see, they must be deer resistant as well! (There's a bigger picture here, as I want a coy pond and large patio to the right, behind my house!) My neighbor, an opera singer, promised to perform in that far corner! :) Help please!