North America Native Plant

Alpine Collomia

Botanical name: Collomia debilis var. trifida

USDA symbol: CODET

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Collomia debilis (S. Watson) Greene var. integra Payson (CODEI2)   

Alpine Collomia: A Delicate Western Native Worth Discovering If you’re on the hunt for lesser-known native wildflowers to add charm to your western garden, let me introduce you to alpine collomia (Collomia debilis var. trifida). This petite perennial might not be the showiest plant in the nursery, but it’s got ...

Alpine Collomia: A Delicate Western Native Worth Discovering

If you’re on the hunt for lesser-known native wildflowers to add charm to your western garden, let me introduce you to alpine collomia (Collomia debilis var. trifida). This petite perennial might not be the showiest plant in the nursery, but it’s got that quiet, understated beauty that makes native plant enthusiasts swoon.

What Exactly Is Alpine Collomia?

Alpine collomia is a native perennial forb – basically, it’s a non-woody flowering plant that comes back year after year. You might also find it listed under its botanical synonym, Collomia debilis var. integra, just to keep things interesting! As a member of the phlox family, it shares some family traits but maintains its own unique personality.

Where Does It Call Home?

This little beauty is truly a child of the American West, naturally occurring across six western states:

  • Idaho
  • Montana
  • Nevada
  • Oregon
  • Washington
  • Wyoming

It’s particularly fond of mountainous regions, which explains that alpine part of its common name.

Why Consider Alpine Collomia for Your Garden?

Here’s where I need to be honest with you – alpine collomia is something of a gardening mystery. While it’s definitely native and has potential as a garden plant, specific cultivation information is surprisingly scarce. This could mean one of two things: either it’s so easy to grow that nobody bothers writing about it, or it’s challenging enough that few people attempt it!

What we do know is that it’s a perennial, so once established, it should return year after year. Its delicate nature suggests it would fit beautifully in native plant gardens, rock gardens, or naturalized areas where you want to showcase regional flora.

Growing Conditions and Care

Given its alpine origins and western distribution, alpine collomia likely prefers:

  • Well-draining soil (mountain plants typically hate wet feet)
  • Full sun to partial shade
  • Cool, moist conditions during growing season
  • Cold winter temperatures (it’s built for mountain life)

The specific USDA hardiness zones aren’t well-documented, but given its range across northern and mountainous western states, it’s probably quite cold-hardy.

The Honest Truth About Growing Alpine Collomia

Here’s the thing – alpine collomia might be one of those collector’s plants that appeals more to native plant purists than casual gardeners. The lack of readily available growing information suggests it’s either not commonly cultivated or requires specific conditions that aren’t easily replicated in typical garden settings.

If you’re determined to try growing it, your best bet might be to:

  • Source seeds or plants from native plant societies in its natural range
  • Mimic its natural habitat as closely as possible
  • Start with a small trial area before committing to larger plantings
  • Connect with local native plant groups who might have hands-on experience

The Bottom Line

Alpine collomia represents the exciting challenge of working with truly native, regional plants. While it might not be as foolproof as purple coneflower or black-eyed Susan, it offers the satisfaction of growing something genuinely special to the American West.

If you’re in its native range and love the idea of supporting local ecosystems, alpine collomia could be worth the adventure. Just go in with realistic expectations and maybe have a backup plan involving more tried-and-true native alternatives!

Sometimes the most rewarding garden plants are the ones that make us work a little harder – and alpine collomia definitely fits that description.

Alpine 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 debilis (S. Watson) Greene - alpine collomia

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