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Cornell University

Species: Oxydendrum arboreum

(ok-si-den'drum ar-bo'ree-um

Oxydendrum arboreum

Sourwood

Found on Course Walks

Low pH

Map of plant locations

(Plant location data may be incomplete)

In Collection(s):

None Listed

Cultivars

'Albomarginatum', 'Chameleon', 'Mt. Charm'

Ornamental Characteristics

Tree < 30 feet

25' - 30' (spread 20')

Deciduous

pyramidal; drooping branches; fine texture

sun to part shade; not for polluted or urban areas

Environmental Characteristics

Full sun, Part shade

5b

Requires acid (pH 5.0 to 7.0)

iridescent green leaves turn dark green then yellow, red, maroon in fall; fragrant white flowers resemble lily-of-the-valley and bloom in June/July

Consistently moist, well-drained soil; Occasional periods of dry soil
See graphic below

Insect Disease

leaf spot; twig blight; but none serious

Bare Root Transplanting


Other

not easy to move; best to transplant small containerized trees in spring, Native to Eastern US.

Native Range Map

Native Range Map Image

Moisture Tolerance Graphic

Please view this page on a tablet or larger screen for the moisture graph

Moisture Tolerance

Moisture graphic
Occasionally saturated or very wet soil
Consistently moist, well-drained soil
Occasional periods of dry soil
Prolonged periods of dry soil
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