Sunshine Ligustrum and Touch of Gold Holly
These two keep their phenomenal chartreuse color year round. The Sunshine Ligustrum has a slightly faster growth rate, so they'll take trimming a couple of times a year if you're wanting to keep them shorter. However they are easily maintained at 3 ft! The Touch of Gold Holly is less maintenance since on its' own it'll stay around 2-3 feet and trimming is only required to maintain a shape. The full sun will bring out their bright color but can tolerate part sun as well. Don't forget to fertilize yearly!