 | Southern Black Haw - Viburnum rufidulum - Also commonly called Rusty Blackhaw Honeysuckle Family: Caprifoliaceae USDA hardiness zones: 5B through 9 / Origin: native to North America [Cirrus Home] [Tree Encyclopedia] |
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|  Southern Black Haw leaves are bright, shiny, waxy green with serrate edges |
A native of the well-drained, upland woods of southeastern North America, Rusty Blackhaw forms a multiple or (occasionally) single-trunked small tree or large shrub, reaching 25 feet in height with an equal spread (Fig. 1). The dark bark is blocky, resembling older Flowering Dogwood bark. Trunks usually grow no thicker than six inches and arch away from the tree, forming a pleasing, vase-shaped crown. Leaves are dark green, three inches long, leathery, and extremely glossy. The tree is covered in springtime with striking five-inch-wide clusters of small, white blooms. These flowers are followed by clusters of dark blue, waxy, one-half-inch-long fruits that are extremely popular with wildlife and will occasionally persist on the plant from September throughout the autumn, if not eaten by wildlife. In fall, Rusty Blackhaw puts on a brilliant display of scarlet red to purple foliage.
Height: 20 to 25 feet / Spread: 20 to 25 feet / Crown uniformity: irregular outline or silhouette / Crown shape: vase shape / Crown density: moderate / Growth rate: slow |

Leaf arrangement: opposite/sub opposite, simple, serrulate, obovate; ovate, venation: pinnate Leaf type and persistence: deciduous / Leaf blade length: 2 to 4 inches / Fall color: purple; red / Fall characteristic: showy Flower color: white, showy; spring flowering / Fruit shape: round / Fruit length: < .5 inch / Fruit covering: fleshy / Fruit color: blue / Fruit characteristics: does not attract wildlife; inconspicuous and not showy; no significant litter problem. Trunk/bark/branches: bark is thin and easily damaged from mechanical impact; droop as the tree grows, and will require pruning for vehicular or pedestrian clearance beneath the canopy; routinely grown with, or trainable to be grown with, multiple trunks; not particularly showy; no thorns. Needs little pruning to develop. Tree grows in full sun, shade, or combination. Soil tolerances: clay; loam; sand; acidic; occasionally wet; alkaline; well-drained. / Drought tolerance: high. Not a good street tree, as will not tolerate salt aerosol. |

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