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Canadian Rockies
Region profile

Canadian Rockies

Canadian Rockies is a high-elevation ecoregion characterized by severe, mid-latitude, humid continental to subarctic climates, featuring subalpine and alpine ecosystems, numerous large mammals, and land use dominated by national parks, tourism, and recreation.

Zone

Interior

Common Name

Canadian Rockies

CEC Level III Code

6.2.4

CEC Level II Code

6.2 Western Cordillera

Overview

About This Region

The Canadian Rockies are a vital, biodiverse region facing threats to pollinator health. Factors like habitat destruction and the impacts of climate change—indicated by high vulnerability and exposure indexes—pose significant risks. Pollinators, including bees, butterflies, and various other insects and small mammals, are essential for the region’s diverse flora, such as lodgepole pine and aspen forests. Protecting these habitats from stressors like pests, diseases, and chemical use is crucial for “A Billion Small Steps.”

Region facts

At a glance

AliasesCanadian Rockies, CEC 6.2.4
Geographic Range
The Canadian Rockies ecoregion starts near Prince George, covers the Rocky Mountains of Alberta and British Columbia, and extends south to the Missoula region in Montana.
Climate SnapshotThe Canadian Rockies ecoregion has a severe, mid-latitude, humid continental climate with a typical mean annual temperature of approximately 2.5°C and annual precipitation ranging from 500 to over 2,500 mm.
Terrain ProfileThe Canadian Rockies are characterized by linear mountain ranges with steep, precipitous faces, where elevations typically reach 2,200 to 3,500 masl, featuring rocky outcrops, slopes mantled with colluvium and moraine, and isolated patches of permafrost at higher elevations.
Vegetation CoverVegetation is predominantly subalpine and alpine ecosystems, characterized by mixed forests of lodgepole pine, Engelmann spruce, and alpine fir, with Douglas fir and trembling aspen stands in warmer, drier valley systems, and lowgrowing heather, sedges, and mountain avens in alpine areas.
Wildlife HabitatThe Canadian Rockies are home to diverse wildlife, including elk, bighorn sheep, mule deer, moose, caribou, wolf, grizzly and black bears, and mountain goats.

Eco snapshot

What shapes this region

Climate pattern

  • Strong microclimates (small local weather differences) created by elevation, slope direction, and wind exposure.
  • Short, intense growing periods are common in many locations.
  • Snowpack and melt timing can shape when plants leaf out and bloom.

Vegetation profile

Vegetation is predominantly subalpine and alpine ecosystems, characterized by mixed forests of lodgepole pine, Engelmann spruce, and alpine fir, with Douglas fir and trembling aspen stands in warmer, drier valley systems, and lowgrowing heather, sedges, and mountain avens in alpine areas.

Wildlife profile

The Canadian Rockies are home to diverse wildlife, including elk, bighorn sheep, mule deer, moose, caribou, wolf, grizzly and black bears, and mountain goats.

Why pollinators matter here

  • Pollinators help native plants set seed, supporting food webs for birds and other wildlife.
  • Short bloom windows make “all-season” flower planning especially valuable.
  • Healthy pollinator habitat improves resilience in disturbed areas (yards, roadsides, community spaces).
  • Mountain valleys can act like connected corridors—small gardens can become meaningful stepping stones.

Seasonal timing

Planting seasons

Timing varies by microclimate; use this as a flexible guide.

Seasonal timing

  • Spring: Start with cold-tolerant natives and early bloomers; watch for late cold snaps.
  • Summer: Peak bloom season—focus on drought-smart watering and keeping flowers coming.
  • Late summer/fall: Add late bloomers; this is often when pollinators need “last chance” nectar.
  • Winter: Plan, source native plants/seeds, and leave stems/leaf litter for shelter.

Quick seasonal checklist

  • Choose plants for sunny, sheltered spots when possible.
  • Plant in groups (clumps) so pollinators can forage efficiently.
  • Keep a simple bloom plan: early + mid + late.
  • Leave some “messy” habitat (stems, leaves, bare soil patches).

Yearly needs

Pollinator calendar

What pollinators need throughout the year, and what to do about it.

Late winter / early springEarly nectar/pollen; safe shelter as temperatures swingKeep last year’s stems/leaves in place a bit longer; plan early-bloom natives for the sunniest spot
SpringReliable blooms; nesting sites starting upPlant/maintain early bloomers; leave some bare, well-drained soil for ground nesters
SummerContinuous nectar/pollen; water during dry spellsAdd mid-season flowers in clumps; provide a shallow water source with stones for landing
Late summer / fall“Finish line” nectar/pollen; places to overwinterPrioritize late bloomers; avoid fall clean-up that removes stems and seedheads too early
WinterProtected overwintering habitatLeave stems standing; keep leaf litter in garden corners; plan next season’s bloom sequence

Seed mix concept

A Billion Small Steps Seed mix

A simple way to plan is to think in three layers, so something is always blooming when conditions allow:

Spring starter

Early bloomers (often including early-flowering shrubs and hardy perennials) to kick off the season.

Summer bridge

Mid-season workhorses that carry the highest pollinator activity period.

Fall finisher

Late-season asters/goldenrods (and other late bloomers) to support pollinators before winter.

What You Can Do

Make a difference for native habitats.

Turn this knowledge into action. Whether you plant a single pot or a whole garden, you are building a vital bridge for local biodiversity.

Join the movement to restore our shared habitats.

Native plants

Plants that thrive in this region

Alders (*Alnus* spp.)

Alders

Alders are fast-growing trees in the genus Alnus that are especially useful in damp spots and along edges where you want quick cover and early-season pollen for insects.

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Asters (*Symphyotrichum* spp.)

Asters

Asters are late-season wildflowers that bring a burst of daisy-like blooms when many gardens are winding down, making them a reliable choice for pollinator-friendly planting.

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Birches (*Betula* (genus))

Birches

Birches are graceful trees in the genus Betula, known for their often light-colored bark and early-season pollen and catkins that support springtime insects.

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Blueberries & huckleberries (*Vaccinium* (genus))

Blueberries & huckleberries

Blueberries and huckleberries (genus Vaccinium) are berry-producing shrubs with spring flowers that can support pollinators and later feed people and wildlife—great for gardens, schoolyards, and even large containers.

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Clovers (*Trifolium* spp.)

Clovers

Clovers are small, easygoing plants in the genus Trifolium that can add nectar and pollen to gardens, lawns, and pots while helping cover bare soil.

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Fireweed (*Chamerion* spp.)

Fireweed

Fireweed is a tough, fast-growing wildflower in the genus Chamerion that brings bright pink blooms and lots of pollinator activity to sunny, open spaces.

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Fleabanes (*Erigeron* spp.)

Fleabanes

Fleabanes (genus Erigeron) are easygoing wildflowers with daisy-like blooms that can brighten gardens, schoolyards, and balcony pots while offering steady nectar and pollen for many small pollinators.

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Goldenrods (*Solidago* spp.)

Goldenrods

Goldenrods are tough, sunny wildflowers in the genus Solidago that light up late-season gardens with golden blooms and provide reliable nectar and pollen when many other flowers are fading.

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Kinnikinnick (Arctostaphylos spp.)

Kinnikinnick

Kinnikinnick is a tough, low-growing evergreen groundcover in the genus Arctostaphylos (often called bearberry) that forms a tidy mat and offers small spring flowers followed by red berries.

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Manzanitas (West) (Arctostaphylos spp.)

Manzanitas

Manzanitas are tough, beautiful western shrubs with urn-shaped flowers that can feed early-season pollinators and evergreen leaves that keep gardens looking good year-round.

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Poplars, aspens & cottonwoods (*Populus*)

Poplars, aspens & cottonwoods

Poplars, aspens, and cottonwoods (genus Populus) are fast-growing trees best known for their fluttering leaves and soft “cottony” seeds. They can support early-season pollinators with spring catkins, but they’re also big, thirsty, and often short-lived in small yards—so they’re best chosen with space and roots in mind.

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Rushes (*Juncus* spp.)

Rushes

Rushes are tough, grass-like wetland plants (genus Juncus) that thrive in damp soil and help create calm, sheltered habitat at the edges of ponds, rain gardens, and low spots.

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Sedges (*Carex* (genus))

Sedges

Sedges (genus Carex) are grass-like plants that form tidy clumps and thrive in many garden conditions, especially where soil stays a bit damp. They add texture, cover bare ground, and can support small wildlife by providing shelter and nesting material.

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Willowherbs (*Epilobium* spp.)

Willowherbs

Willowherbs (genus Epilobium) are easygoing wildflowers that pop up in sunny, open spots and offer simple, nectar-rich blooms that many small pollinators can use.

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Willows (*Salix* spp.)

Willows

Willows are fast-growing trees and shrubs in the genus Salix that offer some of the earliest pollen and nectar of the year, making them a strong choice for pollinator-friendly yards, parks, and school grounds.

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Yarrow (*Achillea millefolium*)

Yarrow

Yarrow is a tough, easygoing wildflower that brings long-lasting blooms and steady pollinator visits to gardens, schoolyards, and even containers.

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Pollinators

Pollinators active in this region

Bee flies (Family Bombyliidae)

Bee flies

Adults visit flowers for nectar and can move pollen between blooms; their presence is a sign of diverse, functioning habitats.

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Bumble bees (Genus Bombus)

Bumble bees

Bumble bees are important pollinators of many wildflowers and garden plants, helping ecosystems and food crops reproduce.

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Dance flies (Family Empididae)

Dance flies

Many visit flowers for nectar and can move pollen between blooms while also playing important roles in local food webs.

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F_hoverfly-01.jpg

Flower flies / hoverflies

Adults visit flowers for nectar and pollen, and many species’ larvae help keep plant-eating pests in check.

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Geometer moths (Family Geometridae)

Geometer moths

Adults can help move pollen as they nectar at flowers, and their caterpillars are an important part of local food webs.

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Hawk / sphinx moths (Family Sphingidae)

Hawk / sphinx moths

They can move pollen between flowers while feeding on nectar, especially for blooms that open or scent up in the evening.

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Small nectar moths (micro-moths) (Multiple families (varies))

Small nectar moths (micro-moths)

Many small moths move pollen while feeding on nectar, supporting wild plants and garden blooms—especially in the evening and at night.

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Soldier flies (Family Stratiomyidae)

Soldier flies

Many adults visit flowers for nectar and can move pollen between blooms while feeding.

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Whites & sulphurs (Family Pieridae)

Whites & sulphurs

They visit a wide range of flowers for nectar and can help move pollen between blooms as they feed.

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