Hedges are a necessary part of every garden, providing privacy, blocking wind or even buffering noise. But most importantly edges provide structure to your garden. Hedging plants are usually budget friendly especially if you buy them bare-rooted.
Hydrangea paniculata Limelight, large white blooms tinged with pale green; trailing Ivy at the base spills over the sides of the classy zinc planter boxes. Baltic Ivy (variegated creamy edge) would combine well too.