What are my options for low maintenance evergreen screen?
I've finally cleared a strip that was a real mess, by my wall (see pic), and need to plant some sort of screening plant, as the neighbor's house can otherwise look right in to my backyard (and a brick block wall is not the loveliest of landscaping choices!). I need 8 feet of height at least, and this is a 6-foot high wall, so no creeping vines! As you can see from the picture, we only have a roughly 12-inch wide trough in which to plant (looks like more, but the concrete base of wall takes up 8" or so under the first couple of inches of earth), and I don't want a plant with a disruptive root structure, that will break the paving, nor one that drops too many berries/pods/flowers etc...Help!!
Can anyone recommend a zone 9 tolerant (preferably drought tolerant but not absolutely necessary - I simply like to conserve water if possible), low maintenance plant that I could plant along this wall? It's about 20-feet long. Thanks!