North America Native Plant

Canadian Hawkweed

Botanical name: Hieracium kalmii var. fasciculatum

USDA symbol: HIKAF

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald (HICAF)   

Canadian Hawkweed: A Rare Native Beauty Worth Protecting Meet Canadian hawkweed (Hieracium kalmii var. fasciculatum), a charming native wildflower that’s become something of a botanical treasure. This unassuming perennial might not win any flashiness contests, but it holds a special place in North America’s natural heritage – and could earn ...

Rare plant alert!

Region: New Jersey

Status: Endangered, Listed Pinelands, Highlands Listed, S1: New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Canadian Hawkweed: A Rare Native Beauty Worth Protecting

Meet Canadian hawkweed (Hieracium kalmii var. fasciculatum), a charming native wildflower that’s become something of a botanical treasure. This unassuming perennial might not win any flashiness contests, but it holds a special place in North America’s natural heritage – and could earn a spot in your native garden too.

What Makes Canadian Hawkweed Special?

Canadian hawkweed is a native perennial forb, meaning it’s an herbaceous plant that comes back year after year without developing woody stems. As part of the sunflower family, it produces cheerful yellow flowers that look like miniature dandelions, blooming throughout the summer months. Don’t let its modest appearance fool you – this little wildflower packs an ecological punch.

You might also encounter this plant listed under its scientific synonym, Hieracium canadense var. fasciculatum, in older botanical references.

Where Does It Call Home?

This native beauty has quite an impressive range across the northern United States. You’ll find Canadian hawkweed naturally occurring in 18 states, stretching from Maine down to New Jersey and as far west as Wyoming. It grows throughout the Great Lakes region, including Connecticut, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, and Wisconsin.

A Plant That Needs Our Help

Here’s where things get serious: Canadian hawkweed is listed as endangered in New Jersey, where it holds an S1 conservation status meaning it’s critically imperiled. This rarity status makes it extra special – and extra important to protect.

If you’re considering adding this native to your garden, please source it responsibly. Never collect plants from the wild, and make sure any nursery stock comes from ethical propagation programs. By growing Canadian hawkweed in appropriate gardens, you’re actually helping conserve this precious native species.

Why Your Garden (and Local Wildlife) Will Love It

Canadian hawkweed might be small, but it’s mighty when it comes to supporting local ecosystems. Its bright yellow composite flowers are excellent pollinator magnets, attracting:

  • Native bees looking for nectar and pollen
  • Butterflies seeking energy-rich nectar
  • Other beneficial insects that help keep garden ecosystems balanced

As a native species, it has co-evolved with local wildlife over thousands of years, making it perfectly suited to support the creatures that call your region home.

Perfect Spots for Canadian Hawkweed

This adaptable native works beautifully in several garden styles:

  • Native plant gardens: A natural choice for authentic regional plantings
  • Wildflower meadows: Adds subtle color and texture to naturalized areas
  • Pollinator gardens: Provides reliable nectar sources throughout the growing season
  • Woodland edges: Thrives in partially shaded transitional areas

Growing Canadian Hawkweed Successfully

The good news? Canadian hawkweed is relatively low-maintenance once established, like many native plants. Based on its natural range, it’s likely hardy in USDA zones 3-7, making it suitable for most northern gardens.

While specific growing requirements can vary, most hawkweeds prefer:

  • Well-draining soil (they generally dislike soggy conditions)
  • Partial sun to light shade
  • Moderate moisture levels
  • Minimal fertilization (natives often prefer lean soils)

Care Tips for Success

Once established, Canadian hawkweed should largely take care of itself – that’s the beauty of native plants! Here are a few tips to help it thrive:

  • Water regularly during the first growing season to help establish roots
  • Avoid over-fertilizing, which can actually weaken native plants
  • Allow some flowers to go to seed to support wildlife and natural reproduction
  • Be patient – native perennials often take 2-3 years to reach their full potential

The Bottom Line

Canadian hawkweed represents everything wonderful about native gardening: ecological benefits, low maintenance requirements, and a connection to your local landscape’s natural heritage. Its endangered status in some areas makes growing it even more meaningful – you’re literally helping preserve a piece of North America’s botanical diversity.

Just remember to source your plants responsibly and enjoy watching this modest native work its quiet magic in your garden. Sometimes the most unassuming plants turn out to be the most valuable allies in creating sustainable, wildlife-friendly landscapes.

Canadian Hawkweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Hieracium L. - hawkweed

Species

Hieracium kalmii L. - Kalm's hawkweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA