Ground covers are a frequently neglected part of garden design. How else to explain the overwhelming use of Vinca minor, English ivy, and pachysandra when so many other choices are available?
Instead of thinking only of very low-growing evergreen selections, broaden your possibilities to include other plants that can be massed to tie together areas of the garden. The relationship between a ground cover and its location and use should determine the appropriate height, not some limiting idea that anything more than 4 inches tall cannot qualify.
Fall color is an important part of garden design, and it should be part of your ground cover selection process, just as it is for trees and shrubs.
Some ideas for ground covers:
Fragrant sumac (Rhus aromatica ‘Gro-Low’): The glossy, deciduous leaves, which are aromatic when bruised, turn a fiery orange-red in the fall. The wide-spreading shrub grows to 2 feet tall and works very well, even on a slope, in full sun or partial shade.
Bigroot cranesbill (Geranium macrorrhizum): This
mound-forming semi-evergreen perennial has leaves with a distinctive medicinal scent that turn reddish in the fall. It grows from 12 to 15 inches tall and spreads well through a thick, rhizomatous root structure. It is easy to grow and is both heat and drought tolerant. Different cultivars have different spring flower color
Leadwort (Ceratostigma plumbaginoides): Fall color and flowers occur at the same time. The shiny green leaves turn strawberry tints, then bronze-red in fall, while the cobalt blue flowers last from late summer until frost. Cut back the bare wiry stems in late winter.
Leaves appear in late spring, just after you’re convinced it is dead. Grows 8 to 12 inches tall. It works well in full sun or shade, but colors up better in the sun.
Siberian carpet cypress (Microbiota decussata): This wide-spreading evergreen grows to2 feet tall, with arching, scaly, feathery foliage that turns bronze after a frost. It’s unusual in that it is an evergreen that tolerates shade. It really is from Siberia, and very cold hardy.
Rockspray cotoneaster (Cotoneaster horizontalis): The dark, shiny deciduous leaves turn orange-red, complementing small red berries growing along the stems. This densely branching woody shrub grows from 2 to 3 feet high, spreading to 6 feet. Its arching habit makes it looklike the perfect refuge for rabbits or chipmunks as it covers and cascades down a bank. Lower-growing cultivars are also available.