Location specific values:
Array
(
    [lat] => 36.677800
    [lng] => -76.302300
    [elevation] => 4
    [rainfall] => 1223.82
    [cold_temperature] => -0.3276
    [temperature] => 30.8243
    [user_eto] => 1090.27618608
)
Plant specific values:
Array
(
    [rain_min_irrigation] => 763
    [eto_corrected] => 712
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 1.07162921
)
Canadian Hawkweed (Hieracium kalmii) | Easyscape Plant Profile

Canadian Hawkweed

(Hieracium kalmii)

Canadian Hawkweed (Hieracium kalmii)

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Estimated Native Range
Species Map Help

Climate Requirements for Chesapeake, Virginia

This Plant Your Site Plant Suitability for Your Location
Precipitation 30" - 41" 48" Aquatic Aquatic
High Temp. 72°F - 82°F 87°F Your summers may be too hot for this plant. Too hot
Low Temp. 5°F - 15°F 31°F OK, but your winter temperatures are warmer than normal for this plant OK
This plant may not grow well at your location - your precipitation is too high.

Summary

Hieracium kalmii, commonly known as Canadian Hawkweed, is a perennial herb native to open woodlands, meadows, and forest edges in eastern North America. It typically grows to a height of 1-3 feet (0.3-0.9 meters) and features a basal rosette of pointed leaves with toothed margins. The plant produces clusters of small, dandelion-like yellow flowers atop slender, hairy stems during the summer months. The flowers are modestly showy and attract a variety of pollinators.

Canadian Hawkweed is valued for its low maintenance and ability to thrive in a range of conditions, making it suitable for naturalized areas, wildflower meadows, and informal garden settings. It prefers full sun to partial shade and can tolerate a variety of soil types, though it flourishes in well-drained soils. While generally not used in formal plantings, its ease of care and resistance to many common pests and diseases make it a practical choice for gardeners looking to add a naturalistic or wildflower component to their landscapes. However, gardeners should be aware that Hieracium species can become invasive and may spread aggressively in some conditions.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 1-3 feet
  • Width: 0.5-1 feet
  • Growth Rate: Moderate
  • Flower Color: Yellow
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium
  • Drainage: Medium, Fast

Common Uses

Bee Garden, Butterfly Garden, Low Maintenance

Natural Habitat

Open woodlands, meadows, and forest edges in eastern North America

Other Names

Common Names: Canada Hawkweed

Scientific Names: Hieracium kalmii

GBIF Accepted Name: Hieracium kalmii