North America Native Plant

Alpine Phacelia

Botanical name: Phacelia lyallii

USDA symbol: PHLY2

Life cycle: annual

Habit: forb

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

Alpine Phacelia: A Delicate Mountain Wildflower for Your Native Garden If you’re looking to add a touch of mountain meadow magic to your garden, alpine phacelia (Phacelia lyallii) might just be the perfect choice. This charming native wildflower brings delicate beauty and important ecological benefits to landscapes across the northern ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Alpine Phacelia: A Delicate Mountain Wildflower for Your Native Garden

If you’re looking to add a touch of mountain meadow magic to your garden, alpine phacelia (Phacelia lyallii) might just be the perfect choice. This charming native wildflower brings delicate beauty and important ecological benefits to landscapes across the northern Rocky Mountains and beyond.

What Is Alpine Phacelia?

Alpine phacelia is a native annual forb that calls the mountainous regions of northwestern North America home. As a member of the waterleaf family, this lovely wildflower produces clusters of small, bell-shaped flowers that typically bloom in shades of blue to purple. The flowers are arranged in characteristic coiled clusters that unfurl as they bloom, creating an enchanting spiral display.

The plant’s soft, hairy leaves are deeply lobed, giving the entire plant a delicate, almost fuzzy appearance that’s quite endearing up close. Despite being an annual, alpine phacelia can self-seed readily under the right conditions, potentially returning to your garden year after year.

Where Alpine Phacelia Grows Naturally

This mountain native has a relatively limited range, naturally occurring in Alberta and British Columbia in Canada, as well as Idaho and Montana in the United States. It’s adapted to the challenging conditions found in alpine and subalpine environments, where it has evolved to thrive in cooler temperatures and well-drained mountain soils.

Important Conservation Considerations

Before we dive into growing tips, there’s something important every responsible gardener should know: alpine phacelia has a Global Conservation Status of S3, meaning it’s considered vulnerable throughout its range. This could be due to its naturally limited distribution, specific habitat requirements, or other factors that make it susceptible to population declines.

What does this mean for gardeners? If you decide to grow alpine phacelia, it’s crucial to source your seeds or plants from reputable native plant suppliers who collect responsibly and legally. Never collect seeds from wild populations, as this can harm already vulnerable plant communities.

Why Grow Alpine Phacelia?

Despite its conservation status—or perhaps because of it—there are compelling reasons to include alpine phacelia in your garden:

  • Native pollinator support: The nectar-rich flowers are magnets for native bees, butterflies, and other beneficial insects
  • Unique beauty: Those spiral flower clusters and soft, textured foliage add interesting visual appeal
  • Conservation value: Growing this species responsibly can help maintain genetic diversity
  • Authentic regional character: Perfect for gardeners wanting to showcase their area’s native flora
  • Low maintenance: Once established, it requires minimal care

Perfect Garden Settings

Alpine phacelia shines in several garden styles:

  • Rock gardens: Its mountain origins make it perfect for rocky, well-drained settings
  • Alpine gardens: Naturally suited for high-elevation garden themes
  • Native plant gardens: An authentic choice for regional native landscaping
  • Wildflower meadows: Adds delicate texture among other native blooms
  • Naturalized areas: Great for low-maintenance, wildlife-friendly spaces

Growing Conditions and Care

Alpine phacelia isn’t particularly fussy, but it does have some preferences based on its mountain heritage:

  • Sunlight: Full sun to partial shade (can handle some protection from intense afternoon sun)
  • Soil: Well-drained soils are essential—avoid heavy clay or constantly moist conditions
  • Water: Moderate moisture during germination, then quite drought-tolerant once established
  • Climate: Thrives in cooler climates, likely hardy in USDA zones 3-7
  • Spacing: Allow adequate air circulation to prevent fungal issues in humid conditions

Planting and Propagation Tips

Since alpine phacelia is an annual, it’s typically grown from seed:

  • Timing: Direct sow seeds in fall for spring germination, or start early in spring
  • Seed preparation: Seeds may benefit from cold stratification to improve germination
  • Sowing depth: Barely cover seeds—they need some light to germinate
  • Germination: Be patient—mountain natives often take their time to sprout
  • Self-seeding: Allow some flowers to go to seed for natural propagation

Supporting Pollinators and Wildlife

One of alpine phacelia’s greatest contributions to your garden ecosystem is its value to pollinators. The small but numerous flowers provide an excellent nectar source for a variety of beneficial insects. Native bees are particularly fond of phacelia species, and you’ll likely see butterflies and other pollinators visiting throughout the blooming season.

As the seeds mature, they may also provide food for small birds and other wildlife, extending the plant’s ecological benefits beyond just the flowering period.

The Bottom Line

Alpine phacelia offers gardeners a unique opportunity to grow a beautiful, ecologically valuable native plant while contributing to conservation efforts. Its delicate flowers, pollinator appeal, and authentic regional character make it a wonderful addition to the right garden setting.

Just remember: source responsibly, grow thoughtfully, and enjoy watching this charming mountain native bring a piece of alpine meadow beauty to your landscape. With proper care and the right conditions, alpine phacelia can be both a garden treasure and a small but meaningful contribution to preserving our native plant heritage.

Alpine Phacelia

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

Solanales

Family

Hydrophyllaceae R. Br. - Waterleaf family

Genus

Phacelia Juss. - phacelia

Species

Phacelia lyallii (A. Gray) Rydb. - alpine phacelia

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