Maryland has three USDA hardiness zones--5B, 6 and 7. Shrubs that are hardy in Maryland are valued for different reasons--some for their fragrant-flowers and some for their fall color. Shrubs range from a few inches tall to over 10 feet, making them fit into a wide variety of garden spaces.
Candytuft (Iberis sempervirens) is an evergreen shrub that grows up to 10 feet tall and 2 feet wide. The plant produces narrow, glossy green leaves that grow to about 1 inch long and small white flowers that bloom in early April. The flowers give way to fruit that starts out green and turns tan when mature. Plant candytuft in full sun or partial shade and in a soil that is moist and well-drained. Candytuft is recommended for use in a rock garden, as an edging, in a flower bed or as a foundation plant and is hardy in zones 3 to 9.
Rose daphne (Daphne cneorum) is an evergreen shrub that grows from 6 to 12 inches tall with a spread twice as wide. The plant features dark-green, narrow leaves that grow up to 1 inch long and small, fragrant, bright pink flowers that grow in clusters from April through summer. Plant rose daphne in full shade and soil that is moist and well-drained. The plant is recommended for a ground cover or for a rock garden and is hardy in zones 4 through 9.
Bush cinquefoil (Potentilla fruticosa) is a deciduous shrub that grows from 1 to 4 feet tall with an equal spread producing medium blue-green or dark green leaves that grow to about 1 inch long and turn yellow-brown in the fall. The yellow, buttercup-like flowers grow from 1 to 1 1/2 inches in diameter and bloom from June to first frost, giving way to small brown fruit that lasts through the winter. Plant bush cinquefoil in full sun. The plant is adaptable to different types of soil. Bush cinquefoil is recommended for borders, as a foundation plant and for mass plantings. The plant is hardy from zones 2 to 6.
Winged euonymus (Euonymus alatus) is a deciduous shrub that grows from 15 to 20 feet tall with dark-green leaves that grow from 1 to 3 inches long and turn bright red in the fall and small flowers that bloom in late May, giving way to small red fruit that ripens in September. Plant winged euonymus in full sun or partial shade. The plant is tolerant of many soil conditions. Winged euonymus is hardy in zones 4 to 9 and is recommended for a shrub fence or as a foundation plant.