North America Native Plant

Columbian Monkshood

Botanical name: Aconitum columbianum ssp. viviparum

USDA symbol: ACCOV2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Aconitum bulbiferum Howell (ACBU)  âš˜  Aconitum columbianum Nutt. var. howellii (A. Nelson & J.F. Macbr.) C.L. Hitchc. (ACCOH)  âš˜  Aconitum hansenii Greene (ACHA2)  âš˜  Aconitum howellii A. Nelson & J.F. Macbr. (ACHO)  âš˜  Aconitum viviparum Greene (ACVI5)   

Columbian Monkshood: A Rare Native with Limited Garden Potential Meet Columbian monkshood (Aconitum columbianum ssp. viviparum), a native perennial that’s more of a botanical curiosity than a garden staple. This lesser-known subspecies of the broader Columbian monkshood family calls the mountainous regions of the Pacific Northwest home, but don’t expect ...

Columbian Monkshood: A Rare Native with Limited Garden Potential

Meet Columbian monkshood (Aconitum columbianum ssp. viviparum), a native perennial that’s more of a botanical curiosity than a garden staple. This lesser-known subspecies of the broader Columbian monkshood family calls the mountainous regions of the Pacific Northwest home, but don’t expect to find it at your local nursery anytime soon.

Where Does Columbian Monkshood Grow Naturally?

This native beauty has a pretty exclusive address – you’ll only find it naturally occurring in California and Oregon. As a true native to the lower 48 states, it’s perfectly adapted to the specific conditions of these western mountain regions.

What Exactly Is This Plant?

Columbian monkshood is what botanists call a forb – basically a fancy term for a soft-stemmed perennial herb that lacks woody tissue. Think of it as the opposite of a shrub or tree. It dies back to the ground each winter and emerges fresh each spring, making it a true perennial that can theoretically live for many years under the right conditions.

The subspecies name viviparum is particularly intriguing – it suggests this plant may produce small plantlets or bulbils, giving it unique reproductive characteristics that set it apart from its relatives.

The Garden Reality Check

Here’s where things get a bit challenging for home gardeners. While Columbian monkshood is undoubtedly a legitimate native species worthy of respect and conservation, it’s not exactly garden-friendly material. Here’s why:

  • Extremely limited availability – you won’t find this at garden centers
  • Specialized growing requirements that are difficult to replicate in home gardens
  • Member of the Aconitum genus, which contains highly toxic compounds
  • Very little cultivation information available for this specific subspecies

Safety First: The Toxicity Concern

All members of the Aconitum genus contain potent alkaloids that are extremely poisonous to humans and animals. While this plant has its place in natural ecosystems, the safety risks make it unsuitable for gardens where children, pets, or livestock might be present.

Supporting Native Plant Conservation Instead

Rather than attempting to grow this challenging and potentially dangerous plant, consider supporting its conservation in the wild. If you’re passionate about supporting Pacific Northwest natives in your garden, there are many safer, more garden-appropriate alternatives that will give you that native plant satisfaction without the headaches.

Look for other California and Oregon natives that are better suited to cultivation – plants like Pacific bleeding heart, Oregon grape, or western columbine can give you that native plant pride while actually thriving in garden conditions.

The Bottom Line

Columbian monkshood subspecies viviparum is a fascinating piece of our native plant heritage, but it’s best appreciated from a distance. Its limited range, specialized needs, and safety concerns make it more of a admire in nature plant than a grow in your backyard option. Sometimes the best way to love a native plant is to let it stay wild where it belongs.

Columbian Monkshood

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

Aconitum L. - monkshood

Species

Aconitum columbianum Nutt. - Columbian monkshood

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