North America Native Plant

Flaming Trumpet

Botanical name: Collomia rawsoniana

USDA symbol: CORA3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Flaming Trumpet: A Rare California Native Worth Protecting Meet the flaming trumpet (Collomia rawsoniana), a plant that’s as intriguing as its fiery common name suggests. This little-known California native is one of those botanical gems that makes you appreciate the incredible diversity hiding in our local ecosystems – though you’ll ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Flaming Trumpet: A Rare California Native Worth Protecting

Meet the flaming trumpet (Collomia rawsoniana), a plant that’s as intriguing as its fiery common name suggests. This little-known California native is one of those botanical gems that makes you appreciate the incredible diversity hiding in our local ecosystems – though you’ll need to be extra thoughtful if you’re considering adding it to your garden.

What Makes Flaming Trumpet Special

Flaming trumpet is a native forb, which simply means it’s a non-woody flowering plant that dies back to the ground each season. What makes this particular species truly remarkable isn’t just its striking name, but its incredible rarity. This plant holds a Global Conservation Status of S2, meaning it’s considered Imperiled due to extreme rarity or factors that make it especially vulnerable to disappearing forever.

To put this in perspective, there are typically only 6 to 20 known occurrences of this plant in the wild, with perhaps only 1,000 to 3,000 individual plants remaining. That makes every single flaming trumpet precious!

Where You’ll Find Flaming Trumpet

This rare beauty calls California home and is found nowhere else in the world. Its limited range makes it a true California endemic – a plant that evolved here and exists nowhere else on Earth.

Should You Grow Flaming Trumpet?

Here’s where things get interesting, and frankly, a bit complicated. While flaming trumpet is undoubtedly a fascinating native plant that would make any California garden special, its extreme rarity means we need to approach it with extra care and responsibility.

If you’re considering growing flaming trumpet, here’s what you need to know:

  • Only source plants or seeds from reputable native plant nurseries that can guarantee ethical collection practices
  • Never collect plants or seeds from wild populations – this could harm the species’ survival
  • Consider this plant only if you’re committed to conservation and have experience with rare natives
  • Be prepared for limited growing information, as cultivation techniques are not well-documented

Growing Conditions and Care

Unfortunately, detailed growing information for flaming trumpet is quite limited due to its rarity. What we do know is that it’s classified as Facultative Upland in both the Arid West and Western Mountains regions, meaning it typically prefers non-wetland conditions but can occasionally tolerate some moisture.

As a forb, it lacks woody tissue and likely has a relatively soft, herbaceous growth habit. The plant can be either annual or perennial, though specific details about its life cycle in cultivation aren’t well documented.

A Conservation Perspective

Sometimes the best way to support a rare plant isn’t necessarily to grow it in our gardens, but to support the organizations and efforts working to protect its wild habitat. Consider supporting California native plant societies, botanical gardens with conservation programs, or habitat restoration projects that benefit rare species like flaming trumpet.

If you do choose to grow this remarkable plant, you become part of its conservation story. Just remember that with great botanical beauty comes great responsibility – especially when that beauty is as rare as the flaming trumpet.

The Bottom Line

Flaming trumpet represents both the wonder and fragility of California’s native plant heritage. While it might not be the easiest choice for beginning native gardeners, it offers experienced growers a chance to participate in conservation while enjoying a truly unique piece of California’s botanical legacy. Just remember: rare plants require rare responsibility.

Flaming Trumpet

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 rawsoniana Greene - flaming trumpet

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