North America Native Plant

Variableleaf Collomia

Botanical name: Collomia heterophylla

USDA symbol: COHE2

Life cycle: annual

Habit: forb

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

Variableleaf Collomia: A Charming Native Annual for Naturalistic Gardens If you’re looking for a delicate native wildflower that practically grows itself, let me introduce you to variableleaf collomia (Collomia heterophylla). This petite annual might not win any showiest flower contests, but it brings a subtle charm and ecological value that ...

Variableleaf Collomia: A Charming Native Annual for Naturalistic Gardens

If you’re looking for a delicate native wildflower that practically grows itself, let me introduce you to variableleaf collomia (Collomia heterophylla). This petite annual might not win any showiest flower contests, but it brings a subtle charm and ecological value that makes it a wonderful addition to naturalistic gardens across the Pacific Northwest and beyond.

Meet the Variableleaf Collomia

Variableleaf collomia is a native annual forb – essentially a non-woody flowering plant that completes its entire life cycle in one growing season. Don’t let the scientific-sounding name intimidate you; this little beauty is as straightforward as they come. It’s a true North American native, naturally occurring across the western states and provinces.

Where You’ll Find It Growing Wild

This adaptable native calls home to a impressive range across western North America. You’ll find variableleaf collomia growing naturally in British Columbia, California, Idaho, Oregon, and Washington. Its wide distribution is a testament to just how adaptable and resilient this little annual can be.

Why You Might Want to Grow Variableleaf Collomia

Here’s why this unassuming native deserves a spot in your garden:

  • True native status: Supporting local ecosystems never goes out of style
  • Pollinator magnet: Those tiny tubular flowers are perfectly sized for native bees and butterflies
  • Low maintenance: Once established, it pretty much takes care of itself
  • Self-seeding champion: Plant it once, enjoy it for years as it naturalizes
  • Gap filler extraordinaire: Perfect for filling in sparse areas in wildflower meadows

What It Looks Like

Variableleaf collomia won’t overwhelm your garden with bold, showy blooms – and that’s exactly its charm. This delicate annual produces clusters of small, tubular flowers that range from pink to purple, nestled among its variable-shaped leaves (hence the variableleaf name). The flowers form in compact, leafy heads that have an almost cottony appearance when viewed up close.

Perfect Garden Roles

This native annual shines in specific garden settings:

  • Wildflower meadows: Adds delicate texture without overwhelming other plants
  • Native plant gardens: Provides authentic regional character
  • Naturalized areas: Perfect for spaces you want to look wild but still maintained
  • Pollinator gardens: Small flowers attract specialized native pollinators

Growing Conditions and Care

Here’s the good news: variableleaf collomia is refreshingly easy to please. This hardy native thrives in USDA zones 3-9, making it suitable for a wide range of climates across its native range.

Ideal growing conditions include:

  • Full sun to partial shade (though it prefers more sun)
  • Well-drained soils of almost any type
  • Tolerance for poor, rocky, or sandy soils
  • Minimal water once established

Planting and Care Tips

Growing variableleaf collomia is surprisingly straightforward:

  • Seed starting: Direct seed in fall or early spring when soil temperatures are cool
  • Spacing: Don’t worry too much about precise spacing – nature rarely measures
  • Watering: Water gently until seedlings establish, then let nature take over
  • Fertilizing: Skip the fertilizer – this native prefers lean soils
  • Maintenance: Practically none required once established

The Wildlife Connection

While variableleaf collomia might look delicate, it’s a pollinator powerhouse. Those small, tubular flowers are perfectly designed for native bees, small butterflies, and other beneficial insects. By planting this native annual, you’re providing food and habitat for the creatures that keep our ecosystems healthy and balanced.

Is Variableleaf Collomia Right for Your Garden?

Consider adding variableleaf collomia to your garden if you:

  • Want to support native wildlife and pollinators
  • Prefer low-maintenance plants that naturalize
  • Are creating a wildflower meadow or native plant garden
  • Appreciate subtle, delicate beauty over bold showstoppers
  • Live within its native range and want authentic regional plants

However, you might want to pass if you’re looking for long-lasting cut flowers, bold garden statements, or plants that bloom continuously throughout the season.

Final Thoughts

Variableleaf collomia proves that native plants don’t need to be flashy to be valuable. This charming annual offers the perfect combination of ecological benefits, low maintenance requirements, and subtle beauty that makes it ideal for gardeners who want to work with nature rather than against it. Give it a try in your next wildflower planting – you might just find yourself charmed by its understated elegance.

Variableleaf Collomia

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

Polemoniaceae Juss. - Phlox family

Genus

Collomia Nutt. - trumpet

Species

Collomia heterophylla Douglas ex Hook. - variableleaf collomia

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