Thornless Cockspur Hawthorn
Crataegus crus-galli var. Inermis

Description

Crataegus crus-galli var. intermis or Thornless cockspur hawthorn, is a native cultivar to Ontario and ranges from Quebec to North Carolina and Kansas. This thornless, small flowering tree is known for its attractive spring blooms and persistent red fruit. It thrives in well-drained soils with full sun but can tolerate light shade, mild drought, and urban pollution, making it versatile for landscaping. Although its flowers have an unpleasant fragrance, its adaptability and thornless branches make it an excellent choice for parks and open woodlands.
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Planting Site and Native Range

Planting Site
Naturalization, Parks, Highway, Residential, Wide Median, Restricted Urban

Management Notes

Management Notes
Pruning may be necessary for low branches

Tree Characteristics

Growth Rate
Slow (less than 30cm per year)
Width
6 - 11m
Height
6 - 8m
Soil Quantity
11 - 20 m
Leaves
Deciduous

Insects and Diseases

Insects and Diseases
Hawthorns are susceptible to many pest and disease problems. This includes rusts, fireblight, twig and leaf blight, aphids and borers.

Tree Tolerances

Soil Salt Tolerance
Moderate
Salt Spray Tolerance
Moderate
Flooding Tolerance
Low
Drought Tolerance
Very High
pH Tolerance
Tolerant of acid to alkaline soil (5.0 to 8.0)
Shade Tolerance
Full Sun
Plant Hardiness Zone
Zone 4 (a/b) | Zone 5 (a/b) | Zone 6 (a/b)
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