If you have a small, empty space in your yard, brighten it with an orange-flowering shrub. Shrubs provide texture and structure to landscapes, and orange-blooming shrubs offer a colour that attracts butterflies and hummingbirds. Use shrubs as hedges, screens or windbreaks; delineating flowerbeds or planting areas; line paths; or block unwanted sights and sounds. Many species of flowering shrubs bloom in a variety of colours but orange-hued blossoming shrubs less than 8 feet tall are rare.
The Japanese flowering quince (Chaenomeles japonica) grows from 2 to 3 feet tall with a 4-foot spread. A fast-growing, deciduous shrub, this quince blooms with orange-red flowers in spring followed by greenish-yellow fruit. Japanese flowering quince shrubs are hardy between U.S. Department of Agriculture Plant Hardiness Zones 5 to 8 and produce the best flowers in sites with full sun. The Nana pomegranate (Punica granatum 'Nana'), a dwarf cultivar, grows from 1-1/2 to 4 feet tall and blooms with orange-red blossoms in summer. Nana pomegranates produce small, edible fruit in fall. This deciduous plant prefers sun to partial shade and tolerates a range of soil types, from well drained to clay. Nana pomegrantes grow in zones 7b to 10.
Some small, Griffith Buck rose bushes produce orange flowers. The Serendipity, a 3 to 4 foot tall shrub, blooms with orange-to-yellow petals with light-pink borders. The Wild Ginger grows to 4 feet tall and produces fragrant, orange, double flowers with pink-and-yellow tones. Wild Ginger has leathery, dark-green foliage. Gentle Persuasion's orange-yellow blooms contrast with its olive-green foliage. Honeysweet grows to 3 feet tall and has orange-red, double flowers with an intense aroma. Honeysweet foliage is deep green with bronze tints. All of these shrubs are cold- hardy to USDA zone 4 and bloom from late spring until the first frost.
Small azalea shrubs producing orange blossoms include the Cumberland azalea (Rhododendron bakeri), a 4 to 6 foot tall shrub blooming in summer with orange-red, spherical flowers. This compact shrub thrives in partial to high shade and requires moist, fertile soil. Cumberland azalea is hardy in USDA zones 5b to 8b. The flame azalea (Rhododendron calendulaceum) grows from 4 to 8 feet high. This upright shrub grows slowly and prefers partial shade with a few hours of direct sunlight each day. Flame azaleas bloom in late spring with showy clusters of orange, apricot, salmon and gold flowers. Flame azaleas are hardy in zones 5 to 7 and prefer moist, well-drained soil.
The woolly butterfly bush (Buddleia marrubiifolia) blooms with orange blossoms from spring to fall. The flowers offer contrast to the shrub's grey, fuzzy foliage. Woolly butterfly bushes grow up to 5 feet tall with a similar spread. This drought-tolerant, deciduous shrub thrives in full sun and well-drained to dry soil and is hardy in USDA zone 8. The woolly butterfly bush is native to Texas. The hummingbird bush (Justicia californica) is native to Mexico and warmer regions of the Southwestern U.S. Hummingbird bushes grow up to 4 feet tall and produce orange, red and yellow tube-shaped flowers from early-through-late spring. Plant this shrub in full sun and dry soils but provide regular irrigation.