Hedges add greenery to the landscaping and are great borders or dividers. Flowering hedges add color to borders and dividers. There are several flowering hedges, so you can pick a hedge that "matches" the rest of the landscaping, or a hedge that is different for a divider. Most flowering hedges need to be pruned so that the terminal buds are cut off. Cutting the terminal buds off encourages the lateral buds to bloom, giving the hedge more flowers.
Double Knock Out Rose
The double knock out rose grows in USDA hardiness zones 4 through 10. The vegetation grows quickly into a mounded, bushy shrub. It is deep green and has maroon and blue highlights. It produces one to five flowers per cluster, and up to 25 blooms per flowering branch. The buds are cherry red. The blooms grow up to 3-1/2 inches in diameter and produce about 20 petals per bloom. The bloom is cherry red. It blooms from late spring to the first frost. In the fall, the foliage turns deep purple. Unlike many roses, the double knock out rose is resistant to black spot. The double knock out is hardy and drought tolerant.
The Annabelle hydrangea is a deciduous flowering shrub with rapid growth rate. It thrives in USDA hardiness zones 4 to 9 and tolerates sun to partial shade. It is not drought tolerant and needs well-drained, moist soil. The Annabelle hydrangea grows up to 4 feet in height and up to 5 feet wide, with upright stems. It produces white flowers during the summer. The leaves are dark green and grow up to 7 inches long. It produces flowers on new growth, so prune early in the spring.
The abelia is a cross between the A. chinensis and the A. uniflora. It thrives in USDA hardiness zone 6 and the warmer areas of zone 5. It is semi-evergreen and has arching branches. It grows up to 6 feet in height, if left unpruned. The leaves are about 1-inch long and are rounded at the base. The leaves turn bronze in the winter. It produces pinkish-white, tubular-shaped flowers that bloom in May and continue blooming throughout the summer. The Abelia attracts butterflies.
Plant the abelia in acidic to neutral, well-drained, moist soil. It grows in full sun to partial shade and responds well to heavy pruning. The cultivar "Little Richard" is best for hedges, as it only grows up to 3 feet in height and 3 feet wide and doesn't need as much pruning to keep it looking uniform.