North America Native Plant

Eldorado Larkspur

Botanical name: Delphinium hansenii hansenii

USDA symbol: DEHAH

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Delphinium hansenii (Greene) Greene ssp. arcuatum (Greene) Ewan (DEHAA)  âš˜  Delphinium hesperium A. Gray var. hansenii Greene (DEHEH2)   

Eldorado Larkspur: A Golden State Gem for Your Native Garden If you’re looking to add a touch of California’s wild beauty to your garden, the Eldorado larkspur (Delphinium hansenii hansenii) might just be the perfect native perennial for you. This stunning member of the buttercup family brings classic delphinium elegance ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Eldorado Larkspur: A Golden State Gem for Your Native Garden

If you’re looking to add a touch of California’s wild beauty to your garden, the Eldorado larkspur (Delphinium hansenii hansenii) might just be the perfect native perennial for you. This stunning member of the buttercup family brings classic delphinium elegance with the added bonus of being perfectly suited to California’s unique climate and ecosystems.

What Makes Eldorado Larkspur Special?

The Eldorado larkspur is a true California native, found exclusively in the Golden State. As a perennial forb—essentially a non-woody flowering plant—it returns year after year to grace your garden with its distinctive flower spikes. Unlike its more demanding garden cousins, this native delphinium has evolved to thrive in California’s Mediterranean climate, making it a smart choice for water-wise gardeners.

Where Does It Come From?

This beautiful native calls California home, specifically thriving in the Sierra Nevada foothills and surrounding regions. It’s perfectly adapted to the state’s unique growing conditions, from the seasonal rainfall patterns to the summer heat that sends many plants into dormancy.

Garden Appeal and Landscape Role

Eldorado larkspur brings that classic delphinium drama to your native garden with tall spikes of blue to purple flowers that create stunning vertical interest. It works beautifully as:

  • A back-of-border specimen in mixed native plantings
  • An accent plant in naturalistic landscapes
  • A key player in drought-tolerant garden designs
  • A wildflower garden centerpiece

This plant is particularly well-suited for native plant gardens, xeriscapes, and any landscape design that celebrates California’s natural heritage. Its upright growth habit makes it an excellent choice for adding height and structure to your plantings.

Wildlife and Pollinator Benefits

One of the best reasons to grow Eldorado larkspur is its value to local wildlife. The tubular flowers are magnets for hummingbirds, while bees and butterflies also visit for nectar. By planting this native species, you’re supporting the pollinators that have co-evolved with California’s flora for thousands of years.

Growing Conditions and Care

The beauty of growing native plants like Eldorado larkspur is that they’re already adapted to local conditions. Here’s what this plant prefers:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils (essential to prevent root rot)
  • Water: Drought-tolerant once established, but appreciates occasional deep watering
  • Climate: Thrives in USDA hardiness zones 8-10

Planting and Care Tips

Getting your Eldorado larkspur off to a good start is fairly straightforward:

  • Plant in fall when temperatures cool and rains begin
  • Ensure excellent drainage—this is crucial for preventing problems
  • Water regularly the first year to establish roots
  • Once established, reduce watering significantly
  • Don’t be alarmed if the plant goes dormant during hot summer months—this is natural
  • Allow seed heads to develop if you want the plant to self-seed

A Word About Responsible Gardening

Eldorado larkspur has a conservation status that suggests it may face some population pressures in the wild. When purchasing this plant, always buy from reputable native plant nurseries that propagate their stock rather than collecting from wild populations. This ensures you’re supporting conservation efforts while enjoying this beautiful native in your garden.

Is Eldorado Larkspur Right for Your Garden?

This native delphinium is perfect for gardeners who want to:

  • Create water-wise landscapes
  • Support local wildlife and pollinators
  • Grow plants suited to California’s climate
  • Add vertical interest with native plants
  • Enjoy classic delphinium beauty without the fuss

If you’re gardening outside of California or in areas with very different growing conditions, you might want to look for native delphiniums or similar plants suited to your region instead.

The Eldorado larkspur proves that native doesn’t mean boring—sometimes it means you get to enjoy the very best of what your local ecosystem has to offer, right in your own backyard.

Eldorado 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 hansenii (Greene) Greene - Eldorado larkspur

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