North America Native Plant

Wahatoya Creek Larkspur

Botanical name: Delphinium robustum

USDA symbol: DERO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Wahatoya Creek Larkspur: A Rare Mountain Gem Worth Protecting Meet the Wahatoya Creek larkspur (Delphinium robustum), a botanical mystery that’s as elusive as it is beautiful. This native perennial wildflower calls the mountains of Colorado and New Mexico home, but you won’t find it popping up in every garden center. ...

Rare plant alert!

Region: Conservation status by state

Status: S2?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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) ⚘

Wahatoya Creek Larkspur: A Rare Mountain Gem Worth Protecting

Meet the Wahatoya Creek larkspur (Delphinium robustum), a botanical mystery that’s as elusive as it is beautiful. This native perennial wildflower calls the mountains of Colorado and New Mexico home, but you won’t find it popping up in every garden center. In fact, you might not find it anywhere at all – and that’s exactly what makes it so special.

What Makes This Larkspur Special?

The Wahatoya Creek larkspur belongs to the beloved Delphinium family, known for their dramatic flower spikes that shoot skyward like colorful rockets. As a native forb (that’s garden-speak for a non-woody flowering plant), this perennial brings all the classic larkspur charm while being perfectly adapted to the challenging conditions of the American Southwest.

What sets this species apart isn’t just its striking appearance – it’s its rarity. With a Global Conservation Status of S2?, this larkspur exists in that uncertain territory where scientists aren’t quite sure how many populations remain in the wild. It’s like finding a rare book in your grandmother’s attic – precious precisely because it’s uncommon.

Where Does It Call Home?

This mountain dweller has claimed its stake in the rugged landscapes of Colorado and New Mexico. Here, it thrives in conditions that would make most garden plants throw in the trowel – think rocky slopes, intense sun, dramatic temperature swings, and precipitation that comes when it wants to, not when you schedule it.

Should You Grow Wahatoya Creek Larkspur?

Here’s where things get interesting. While we’d love to give you the full scoop on growing this beauty, the reality is that Wahatoya Creek larkspur should be approached with the respect it deserves as a rare native species. If you’re considering adding it to your garden, here’s what you need to know:

  • Source responsibly: Never collect from wild populations – this could harm already fragile ecosystems
  • Work with native plant specialists: Seek out nurseries that specialize in rare native plants and ethical propagation
  • Consider alternatives: Other native Delphinium species might give you similar beauty without conservation concerns

Growing Conditions and Care

While specific growing information for Delphinium robustum is limited due to its rarity, we can make educated guesses based on its native habitat and related species:

  • Sunlight: Likely prefers full sun to partial shade
  • Soil: Well-draining, rocky or sandy soil that mimics mountain conditions
  • Water: Drought-tolerant once established, but may appreciate occasional deep watering
  • Climate: Hardy in USDA zones 4-7, adapted to temperature extremes
  • Maintenance: Low-maintenance once established, true to its mountain heritage

Wildlife and Pollinator Benefits

Like its Delphinium cousins, Wahatoya Creek larkspur likely serves as a beacon for pollinators. Native bees, butterflies, and possibly hummingbirds would naturally be drawn to its nectar-rich flowers. By supporting this rare species (responsibly), you’re not just adding beauty to your garden – you’re helping preserve an important link in the ecosystem chain.

The Bottom Line

Wahatoya Creek larkspur represents something precious in our native plant world – a species that reminds us that not everything can or should be common. While it might not be the easiest native plant to acquire or grow, it offers something invaluable: a connection to the wild places of the Southwest and a chance to participate in conservation right in your own backyard.

If you’re drawn to rare native plants and have experience with challenging species, this larkspur could be a worthy addition to a specialized native plant collection. Just remember – with rarity comes responsibility. Always source ethically, grow thoughtfully, and consider sharing seeds or divisions with other conservation-minded gardeners to help ensure this mountain gem has a future.

Sometimes the most rewarding plants are the ones that make us work a little harder, learn a little more, and care a little deeper. The Wahatoya Creek larkspur might just be one of those plants.

Wahatoya Creek Larkspur

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Delphinium L. - larkspur

Species

Delphinium robustum Rydb. - Wahatoya Creek larkspur

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