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Oxydendrum arboreum

Also called Sorrel Tree


Oxydendrum arboreum - Sourwood

Oxydendrum arboreum - Sourwood

More About Oxydendrum arboreum

  • Irregular habit, both in shrub or tree form, maturing pyramidal
  • White, urn-shaped, flowers droop on one-sided panicles
  • Developing ovaries extend flowering season
  • Flowers lead to dried, brown capsules which persist into the winter
  • Obovate to elliptic leaves are mid-green above and paler below on reddish twigs
  • Gray bark is fissured, ridged and scaly
  • Fall colour is orange to red
  • Bloom Time: Summer
  • Flower Size: 5 mm

Interesting Notes:

The leaves have a sour taste, hence the common name.

Zone:

5

Height:

8-10 m

Spread:

8-10 m

Colour:

White
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Sourwood Growing and Maintenance Tips

An excellent, ornamental, shade tree with brilliant, fall colour, best grown in a slightly acidic soil. Some pruning may be necessary when plants are young to encourage a formal shape.


Oxydendrum arboreum Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Drought Tolerant
Drought Tolerant
Long Blooming
Long Blooming

Soil Moisture

Moist to Average
Well-drained
Average to Dry Soils

Growth Rate

Slow

Attributes

Deciduous
Fruit
Fall Color

Flowering Time

Summer

Habit

Tree form
Multi-stem/Clump form
Pyramidal
Upright

Foliage Color

Green

Landscape uses

Woodland/woods edge
Specimen
Screening (privacy)

 Suitable Substitutions for Oxydendrum arboreum

Heptacodium miconioides

Heptacodium miconioides

Seven-Son Flower