Pterostyrax Species, Fragrant Epaulette Tree

Pterostyraxhispidus

Family
Styracaceae (sty-ra-KAY-see-ee)
Genus
Pterostyrax (ter-oh-STY-raks)
Species
hispidus (HISS-pih-dus)
Synonym
Halesia hispida
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
over 40 ft. (12 m)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Waukegan, Illinois

Floyds Knobs, Indiana

Bishopville, Maryland

Roslindale, Massachusetts

Jamestown, Rhode Island

Belton, South Carolina

Auburn, Washington

Seattle, Washington

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Gardener's Notes:

3
positives
1
neutral
0
negative
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J
Jamestown, RI | June 2021 | positive

My Pterostyrax hispidus is in part shade, but that has not stopped it. It took a couple of years to settle in. The leaves are huge and pa...Read More

O
Belton, SC | April 2011 | positive

This tree was planted in 2002. The deer rubbed on it & broke it off. When it started to re-grow, it came back shrubby. I tried for a c...Read More

B
| June 2002 | positive

I think its a relatively fast-growing -- a 3-foot seedling planted in 1997 is at least 15 feet by spring 2002. It startred flowering in ...Read More

C
C
Chatham-Kent, ON (Zone 6a) | November 2000 | neutral

Rarely grown flowering ornamental trees. It flowers in the late spring ; white flowers are 2 to 3 inch wide pendulous panicles about 5...Read More

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