Answer: Thuja Green Giant is a good choice, as are Leyland Cypress, Cryptomeria and Norway Spruce. Each has a different growth habit and slightly different needle color which will add to the interest of the planting at the front of your property. You might also duplicate some of the trees that you already have in the wooded areas of your property to bring the entire property together into one seamless woodland.
Best wishes with your landscape!
Q&A Library Searching Tips