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Crataegus viridis

Winter King Hawthorn

Tree Characteristics

Leaves:

Deciduous

Height:

6 - 9m

Width:

6 - 11m

Growth Rate:

Moderate

Tree Tolerances

Plant Hardiness Zone:

4, 5, 6

Shade Tolerance:

Full Sun

pH Tolerance:

Tolerant of acid to alkaline soil (5.0 to 8.0)

Drought Tolerance:

Very High

Flooding Tolerance:

Moderate

Salt Spray Tolerance:

Unknown

Soil Salt Tolerance:

Unknown

Planting site and Native Range

Planting Site:

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

Native to Ontario:

No

Native to North America:

Yes

Insects and Diseases

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

Management Notes

  • Thorns are a safety issue for some sites
  • Pruning may be necessary for low branches
  • Suckers frequently on common rootstock (C. phaenopyrum) for ‘Winter King’ cultivar