Crataegus Species, Washington Hawthorn, Washington Thorn

Crataegusphaenopyrum

Family
Rosaceae (ro-ZAY-see-ee)
Genus
Crataegus (krah-TEE-gus)
Species
phaenopyrum (fay-no-PY-rum)
Synonym
Crataegus cordata
Crataegus populifolia
Crataegus youngii
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
20-30 ft. (6-9 m)
Spacing
20-30 ft. (6-9 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)
Danger
Seed is poisonous if ingested
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
Seed Collecting
Remove fleshy coating on seeds before storing
Regional

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

Prattville, Alabama

Booneville, Arkansas

Horseshoe Bend, Arkansas

Aurora, Colorado

Lockport, Illinois

Machesney Park, Illinois

Wheaton, Illinois

Carmel, Indiana

Indianapolis, Indiana

Terre Haute, Indiana

Barbourville, Kentucky

Gobles, Michigan

Ypsilanti, Michigan

Minneapolis, Minnesota

Natchez, Mississippi

Aurora, Missouri

Joplin, Missouri

Whitehouse Station, New Jersey

West Fulton, New York

Haviland, Ohio

Oklahoma City, Oklahoma

Tulsa, Oklahoma

Downingtown, Pennsylvania

Wilkes Barre, Pennsylvania

Irmo, South Carolina

Lexington, South Carolina

Vermillion, South Dakota

Houston, Texas

Midland, Texas

Temperanceville, Virginia

Spokane, Washington

Falling Waters, West Virginia

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Featured Videos

Gardener's Notes:

5
positives
2
neutrals
1
negative
Sort By:
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R
Downingtown, PA | January 2014 | positive

For decades it has been the most popular hawthorn grown by nurseries in the Midwest and East. The Cockspur has been second. Since the tur...Read More

R
Carmel, IN | October 2010 | positive

This tree is not without its faults. Sturdy soles on shoes are a must as it drops wicked thorns. The galls on it's stems are noticeable ...Read More

M
Coon Rapids, MN (Zone 4a) | April 2008 | positive

One of the least common grown of the two commonly planted species of Hawthorn here in Minnesota. Its lobed leaves gaves it away as Washin...Read More

M
Indianapolis, IN (Zone 5b) | February 2008 | negative

I tried to grow these from seedlings, but gave up due to persistent unsightly fungus infections. It was "Quince rust" or "Cedar-quince ru...Read More

E
Glen Mills, PA | October 2005 | positive

I live in the Philadelphia area and we have great success with the winter King Hawthorn. It makes quite a show in winter. Longwood Garden...Read More

Z
Z
Pensacola, FL (Zone 8b) | June 2005 | positive

The red berries can be eaten raw. (The seeds inside the berries are not edible.) Hawthorn berry is good for the heart. Throughout Europe,...Read More

S
Oklahoma City, OK (Zone 7a) | August 2004 | neutral

Prefers moist, well-drained soils in full sun, but is tolerant of poor soils, various soil pHs, compacted soils, drought, heat, and Winte...Read More

M
M
Ewing, KY (Zone 6a) | August 2001 | neutral

White flowers in early June start the color show. Reddish-purple leaves turn dark green, then orange, scarlet or purple. Small, glossy re...Read More

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