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Washington Hawthorn (Phaenopyrum)

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Washington Hawthorn (Phaenopyrum)

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The Washington Hawthorn (Phaenopyrum) is generally described as a perennial tree or shrub. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Washington Hawthorn (Phaenopyrum) has green foliage and inconspicuous white flowers, with a moderate amount of conspicuous red fruits or seeds. The greatest bloom is usually observed in the mid spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Washington Hawthorn (Phaenopyrum) has a long life span relative to most other plant species and a moderate growth rate. At maturity, the typical Washington Hawthorn (Phaenopyrum) will reach up to 30 feet high, with a maximum height at 20 years of 25 feet.

The Washington Hawthorn (Phaenopyrum) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, seed. It has a slow ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -33°F. has medium tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Moderate
General Type Tree, Shrub
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Long
Plant Nativity Native to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Mid Spring
Displays Fall Colors Yes
Shape/Growth Form Single Stem
Drought Tolerance Medium
Shade Tolerance Intolerant
Height When Mature 30
Vegetative Spread None
Flower Color White
Flower Conspicuousness Yes
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Seed
Moisture Requirements Medium
Cold Stratification Required Yes
Minimum Temperature -33
Soil Depth for Roots 30
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Resprout Ability Yes
Responds to Coppicing No
Growth Requirements
pH Range 4.3–7 pH
Precipitation Range 32–32 inches/yr
Planting Density 300–1200 indiv./acre
Soil Textures Fine, Medium
Soil Depth for Roots 30
Minimum Frost-Free Days 160 day(s)
Salinity Tolerance None
CaCO3 Tolerance Low
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA

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Plant Name Synonyms
  • Crataegus cordata
  • Crataegus populifolia
  • Crataegus youngii
Plant Distribution
can be found in Alabama, Arkansas, District of Columbia, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Missouri, Mississippi, North Carolina, New Jersey, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, West Virginia
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