North America Native Plant

Canadian Hawthorn

Botanical name: Crataegus canadensis

USDA symbol: CRCA83

Life cycle: perennial

Habit: shrub

Native status: Native to Canada  

Canadian Hawthorn: A Rare Northern Beauty Worth Knowing Meet the Canadian hawthorn (Crataegus canadensis), a mysterious member of the hawthorn family that’s as elusive as it is intriguing. This perennial shrub represents one of nature’s more secretive offerings, and if you’re lucky enough to encounter it, you’re witnessing something pretty ...

Rare plant alert!

Region: Conservation status by state

Status: S3?Q: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Uncertain taxonomy: ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Canadian Hawthorn: A Rare Northern Beauty Worth Knowing

Meet the Canadian hawthorn (Crataegus canadensis), a mysterious member of the hawthorn family that’s as elusive as it is intriguing. This perennial shrub represents one of nature’s more secretive offerings, and if you’re lucky enough to encounter it, you’re witnessing something pretty special.

What Makes Canadian Hawthorn Special?

Canadian hawthorn is a true native of Canada, specifically found in Quebec. As its name suggests, this woody shrub belongs entirely to the Great White North, making it a genuine piece of Canadian botanical heritage. Like other members of the hawthorn family, it’s a multi-stemmed shrub that typically stays under 13-16 feet tall, though it can occasionally stretch taller under the right conditions.

Where You’ll Find It (Or Won’t)

Here’s where things get interesting – and a bit concerning. Canadian hawthorn has a very limited geographical distribution, currently documented only in Quebec. This restricted range, combined with its uncertain conservation status (listed as S3?Q, meaning its status is undefined but potentially at risk), makes it quite the botanical unicorn.

The Rarity Factor: Why This Matters

Before you start dreaming of adding Canadian hawthorn to your landscape, there’s something important to consider. This species has a Global Conservation Status of S3?Q, which essentially means scientists aren’t entirely sure about its population status, but there’s enough concern to keep a close eye on it. In the plant world, that’s like having a yellow caution light blinking.

If you’re considering planting Canadian hawthorn, proceed with extreme caution and responsibility. This isn’t your typical garden center find, and it shouldn’t be. Any planting should only be done with properly sourced, ethically obtained material – and frankly, you’re more likely to spot a unicorn in your backyard than find this plant available commercially.

Growing Conditions and Care

Unfortunately, specific growing requirements for Canadian hawthorn remain largely undocumented in accessible horticultural sources. This lack of cultivation information is actually quite telling – it suggests this species hasn’t been widely studied or grown in garden settings, which aligns with its rare status.

What we can infer from its Quebec native range is that it likely prefers:

  • Cooler climates similar to its native habitat
  • Conditions typical of northern Canadian ecosystems
  • USDA hardiness zones that correspond to Quebec’s climate (likely zones 2-5)

Garden Role and Landscape Design

Given the uncertainty surrounding this species and its rare status, Canadian hawthorn isn’t really suitable for typical garden or landscape applications. Its proper place is in conservation efforts, botanical gardens, or specialized native plant collections managed by experts.

Better Alternatives for Your Garden

If you’re drawn to hawthorns and want to support native plants, consider these more common and well-established native hawthorn species that won’t raise conservation concerns:

  • Downy hawthorn (Crataegus mexicana) – widely available and well-documented
  • Black hawthorn (Crataegus douglasii) – excellent for wildlife
  • Common hawthorn varieties native to your specific region

The Bottom Line

Canadian hawthorn represents one of those fascinating botanical mysteries that remind us how much we still don’t know about our native flora. While it’s tempting to want to grow every interesting plant we discover, sometimes the most responsible thing we can do is appreciate these species from a distance and support conservation efforts instead.

If you encounter Canadian hawthorn in the wild, consider yourself incredibly fortunate. Take photos, make notes, and maybe even report your sighting to local botanical authorities. Just remember – look, don’t touch, and definitely don’t dig. Some plants are meant to stay wild, and this appears to be one of them.

For your garden, stick with well-documented native hawthorns that can thrive in cultivation without raising conservation concerns. Your local native plant society can point you toward hawthorn species that are both beautiful and abundant enough to share.

Canadian Hawthorn

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Crataegus L. - hawthorn

Species

Crataegus canadensis Sarg. - Canadian hawthorn

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