Planting Norway spruce near retaining wall

Question

The neighbors have a beautiful retaining wall that ends at the property line. I want to plant a Norway Spruce near the line to provide some privacy. How far could I plant the spruce without harming their wall with the roots as the tree grows?

Answer 1

Most trees like this can be planted about 5-10 feet from any structures to prevent possible damage from the root system. This article has additional suggestions for privacy plant screens: https://www.gardeningknowhow.com/special/spaces/plant-a-privacy-screen-plants-that-grow-fast-for-privacy.htm