North America Native Plant

Mountain Harebell

Botanical name: Campanula lasiocarpa

USDA symbol: CALA7

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Campanula latisepala Hultén (CALA49)  âš˜  Campanula latisepala Hultén var. dubia (CALAD2)  âš˜  Campanula lasiocarpa Cham. ssp. latisepala (Hultén) Hultén (CALAL6)   

Mountain Harebell: A Delicate Alpine Beauty for Cool Climate Gardens If you’re looking for a charming native wildflower that brings a touch of alpine elegance to your garden, the mountain harebell might just be your perfect match. This petite perennial packs a surprising punch with its delicate bell-shaped blooms and ...

Mountain Harebell: A Delicate Alpine Beauty for Cool Climate Gardens

If you’re looking for a charming native wildflower that brings a touch of alpine elegance to your garden, the mountain harebell might just be your perfect match. This petite perennial packs a surprising punch with its delicate bell-shaped blooms and remarkable adaptability to challenging growing conditions.

What Makes Mountain Harebell Special

Mountain harebell (Campanula lasiocarpa) is a true North American native, naturally occurring across Alaska, western Canada, and parts of the northwestern United States including Washington state. You’ll find this hardy little forb thriving in some pretty impressive places – from the rugged landscapes of Alberta and British Columbia to the wild territories of Yukon and the Northwest Territories.

As a perennial forb, mountain harebell lacks the woody stems of shrubs and trees, instead producing soft, herbaceous growth that dies back each winter and returns fresh each spring. Don’t let its delicate appearance fool you – this plant is incredibly tough and well-suited to harsh mountain conditions.

Why You’ll Love Growing Mountain Harebell

There are plenty of reasons to fall in love with this alpine gem:

  • Stunning blooms: The signature bell-shaped flowers range from soft blue to deep purple, creating a lovely carpet of color in late spring and summer
  • Native plant benefits: Supporting local ecosystems while requiring less maintenance than non-native alternatives
  • Pollinator magnet: Bees, butterflies, and other beneficial insects can’t resist those charming bell-shaped blooms
  • Low maintenance: Once established, it’s remarkably drought tolerant and self-sufficient
  • Perfect for challenging spots: Thrives in areas where other plants might struggle

Where Mountain Harebell Shines in Your Landscape

This versatile little plant works beautifully in several garden settings:

  • Rock gardens: Its natural alpine habitat makes it perfect for tucking between stones and boulders
  • Alpine gardens: An authentic choice for mountain-themed landscapes
  • Naturalized areas: Let it spread naturally for a wild, meadow-like effect
  • Ground cover: Forms attractive low-growing mats in suitable conditions

Growing Conditions and Care

Mountain harebell is surprisingly adaptable, but it does have some preferences that will help it thrive:

Sunlight: Prefers full sun to partial shade. In very hot climates, some afternoon shade is beneficial.

Soil requirements: The absolute most important factor is excellent drainage. This plant cannot tolerate soggy conditions and will quickly succumb to root rot in poorly draining soils. Sandy or rocky soils work wonderfully.

Hardiness zones: Mountain harebell is incredibly cold hardy, thriving in USDA zones 2-6. It’s built for cold winters and cool summers.

Moisture preferences: Interestingly, this plant has different moisture tolerances depending on your region. In Alaska, it’s typically found in upland areas that stay relatively dry. In western mountain regions, it can handle slightly more moisture but still prefers well-draining sites.

Planting and Establishment Tips

Getting mountain harebell established successfully requires attention to a few key details:

  • Soil preparation: Amend heavy clay soils with coarse sand, gravel, or pumice to improve drainage
  • Planting time: Early spring or fall planting works best in most climates
  • Spacing: Allow adequate room for the plant to spread naturally
  • Initial watering: Water regularly during the first growing season to help establish roots
  • Mulching: Use a gravel or stone mulch rather than organic mulches, which can retain too much moisture

Long-term Care

Once established, mountain harebell is refreshingly low-maintenance:

  • Watering: Drought tolerant once established; avoid overwatering
  • Fertilizing: Generally unnecessary and can actually harm the plant
  • Deadheading: Optional, but removing spent flowers can encourage additional blooms
  • Winter care: No special protection needed – this plant is built for harsh winters

Supporting Wildlife

By choosing mountain harebell, you’re not just adding beauty to your garden – you’re creating habitat and food sources for native wildlife. The flowers attract various pollinators, contributing to the health of your local ecosystem. As a native plant, it has co-evolved with local wildlife and provides benefits that non-native plants simply can’t match.

Is Mountain Harebell Right for Your Garden?

Mountain harebell is an excellent choice if you:

  • Live in a cool climate (zones 2-6)
  • Have well-draining or sandy soil
  • Want to support native pollinators
  • Enjoy low-maintenance plants
  • Have a rock garden or alpine garden
  • Appreciate delicate, natural-looking flowers

However, it might not be the best fit if you have heavy clay soil with poor drainage, live in a very warm climate, or prefer plants with bold, showy flowers.

Mountain harebell proves that sometimes the most beautiful garden additions come in small, understated packages. This native gem offers a perfect blend of natural charm, ecological benefits, and easy care that makes it a wonderful addition to the right garden setting.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Alaska

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Western Mountains, Valleys, and Coast

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Mountain Harebell

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Campanula L. - bellflower

Species

Campanula lasiocarpa Cham. - mountain harebell

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