Here's a tip landscape architects have known for a long time; framing a view with trees creates a more interesting perspective than a wide open view. Plus, trees and shrubs on steep hillsides can help keep slopes from sliding. The plan below frames the existing view, and adds a beautiful landscape to help hold the slope and attract wildlife. Planting on steep slopes may be regulated, so check with your local government. In most cases, planting native plants by hand does not require a permit. Be forewarned after planting your view may be obscured by countless new birds and butterflies.