Sourwood is one of the finest native trees of the American Southeast. This slow-growing, pyramidal tree has lustrous, mildly wavy, dark green leaves that turn yellow, orange and red in autumn. Across the midsummer, the branch tips are graced with long, airy clusters of white, pendant urn-shaped flowers that emit a mild fragrance. The seeds ripen brown, but the seed capsules turn silvery-gray eventually and linger into the winter. Young branches are drab green or a robust red.
Sourwood needs an average, well-drained acidic soil and full to partial sun. As it is slow-growing, it does not compete well with other plants or turfgrass and resents root disturbance. For this reason, it is best planted as a specimen with a large mulched area over its root zone. Sourwood is lovely in a woodland garden, mixed border, or as a container specimen when in its youth. (info source: Learn2Grow.com)
Genus - Oxydendrum
Species - Arboretum
Common name - Sourwood
Germination rate - 40%
Pre-Treatment - Not-required
Plant type - Tree
Vegetation type - Deciduous
Hardiness zones - 5 - 9
Exposure - Full Sun, Partial Sun
Height - 15'-50' / 4.60 - 15(30) m
Spread - 12'-20' / 3.70 - 6 m
Growth rate - Slow
Bloom season - Early Summer, Summer
Leaf / Flower color - Dark Green, autumn - dark red / White
Soil PH - Acidic
Soil type - Clay, Loam, Well Drained
Water requirements - Average Water
Landscape uses - Feature Plant, Mixed Border
1. Surface sow on prepared seedbed or in pots inside.
2. Keep warm in light place. Cover with the glass or clear plastic.
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