Tree Browser
With these characteristics: None
Sourwood
Oxydendrum arboreum
Ericaceae - Heath
Description
Leaves: Alternate; simple; 1-1/2" to 4" long; deciduous; elliptic; glabrous and dark green above, slightly pubescent below; finely serrate or entire margin; petiole 1/2" to 1" long; turn bright red, yellow, or purple in fall.
Twigs/buds: Twigs slender; greenish to red; smooth or slightly hairy. No terminal bud; lateral buds small and conical to round.
Flowers/fruit: Flowers perfect; 1/4" long, white, showy, and fragrant; urn-shaped like other members of the Ericaceae family; arranged in large, drooping clusters; appear in June and July. Fruit a small capsule that splits open into five parts; stays on into the fall; droops at first but matures upright; at first greenish-white but maturing brown. Drooping, abundant flowers and fruit give the tree a lacy appearance.
Bark: Brownish or gray-brown; blocky on older trees; distinctive.
Wood: Little commerical value; heartwood brown to reddish-brown, sapwood paler; heavy, hard, diffuse-porous; used for tool handles, fuel, and pulp.
General: Native to the southeastern U.S. east of the Mississippi and from southern Ohio and Pennsylvania south; not Utah. Prefers moist sites and acid soils, but I have heard it does well in moderately high pH soils (below pH 7.5) in northern Utah. Moderately drought and salt tolerant. Naturally grows in the forest understory, so shade tolerant; full sun also is OK.
Landscape Use: This small- to medium-sized tree (25' to 30' tall) is very attractive when in flower or fruit or for autumn color. Not common in Utah, but I have heard of it being planted recently and doing well. Fairly insect- and disease-free. Avoid very tough, stressful sites. Zones 5-9.
Cultivars: 'Albomarginatum', 'Chameleon', 'Mt. Charm'.
Characteristics
General
- Family:
- Ericaceae - Heath
- Cultivar Availability:
- Yes
- Hardiness Zone:
- 5-9
- Type:
- Broadleaf
- Utah Native:
- No
Growth
- Growth Rate:
- Low
- Mature Height:
- Medium
- Longevity:
- Medium
- Is Good Under Power Lines:
- No
- Crown Shape:
- Pyramidal
Ornamental
- Bark:
- Yes
- Fall Color:
- Yes
- Flowers:
- Yes
- Foliage:
- No
- Fruit:
- Yes
Tolerance
- Shade:
- High
- Salt:
- Medium
- Drought:
- Medium
- Poor Drainage:
- Medium
- Alkalinity:
- Medium
- Transplanting:
- Medium