North America Native Plant

California Licorice-root

Botanical name: Ligusticum californicum

USDA symbol: LICA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

California Licorice-Root: A Rare Native Gem for Shade Gardens If you’re on the hunt for unique native plants that thrive in shady spots, let me introduce you to California licorice-root (Ligusticum californicum). This lesser-known perennial might not be as flashy as some garden favorites, but it’s got its own quiet ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

California Licorice-Root: A Rare Native Gem for Shade Gardens

If you’re on the hunt for unique native plants that thrive in shady spots, let me introduce you to California licorice-root (Ligusticum californicum). This lesser-known perennial might not be as flashy as some garden favorites, but it’s got its own quiet charm that makes it worth considering for the right garden space.

What Makes California Licorice-Root Special?

California licorice-root is a true West Coast native, naturally found in the mountainous regions of California and Oregon. As a member of the carrot family, it produces delicate clusters of small white flowers that dance above fern-like, divided foliage. The plant gets its common name from its aromatic roots, which have a distinctive licorice-like scent when crushed.

This herbaceous perennial (meaning it dies back to the ground each winter and returns in spring) is what botanists call a forb – essentially a non-woody flowering plant that keeps its growing points at or below ground level during dormant seasons.

A Word of Caution: Rarity Matters

Before we dive into growing tips, there’s something important to know: California licorice-root has a conservation status that suggests it may be uncommon in the wild. If you’re interested in adding this plant to your garden, please ensure you source it from reputable native plant nurseries that propagate their own stock rather than wild-collecting. Never harvest this plant from natural areas.

Where California Licorice-Root Shines

This isn’t your typical sun-loving garden star. California licorice-root prefers the cooler, shadier spots that many gardeners struggle to fill. It’s perfect for:

  • Woodland gardens with dappled light
  • Native plant collections
  • Naturalized areas under trees
  • Shaded borders that need something different

The plant works beautifully as an understory specimen, adding texture with its divided foliage and providing subtle seasonal interest when its white flower clusters appear.

Growing Conditions That Make It Happy

Think of California licorice-root as the introvert of the plant world – it prefers quiet, cool spaces away from harsh sun and foot traffic. Here’s what it needs to thrive:

  • Light: Partial to full shade (morning sun is okay, but avoid hot afternoon exposure)
  • Soil: Moist, well-draining soil that doesn’t dry out completely
  • Climate: Best suited for USDA hardiness zones 7-9
  • Water: Consistent moisture without waterlogged conditions

Planting and Care Tips

The good news? Once established, California licorice-root is relatively low-maintenance. Here’s how to set it up for success:

  • Timing: Plant in early spring when soil can be worked
  • Spacing: Allow adequate room for the plant to spread naturally
  • Mulching: Apply a layer of organic mulch to retain moisture and suppress weeds
  • Watering: Keep soil consistently moist, especially during establishment
  • Maintenance: Minimal pruning needed – just remove spent flowers if desired

Wildlife and Pollinator Benefits

While California licorice-root might seem subtle, it pulls its weight in supporting local ecosystems. The umbrella-shaped flower clusters attract small native pollinators, including beneficial wasps, tiny native bees, and various flies that play important roles in garden health.

Is California Licorice-Root Right for Your Garden?

This plant is ideal if you’re looking to support native biodiversity and have the right growing conditions. However, it’s not the best choice if you’re seeking:

  • Bold, showy flowers
  • Plants for full-sun locations
  • Fast-growing ground covers
  • Low-water/drought-tolerant options

California licorice-root rewards patient gardeners who appreciate subtle beauty and want to grow something truly special. Its rarity makes it a conversation starter among native plant enthusiasts, and its ecological value makes it a meaningful addition to wildlife-friendly gardens.

Remember, when seeking out this plant, always choose nursery-propagated specimens from reputable sources. By gardening responsibly, you’re helping ensure that future generations can enjoy both wild populations and cultivated examples of this unique Pacific Coast native.

California Licorice-root

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Ligusticum L. - licorice-root

Species

Ligusticum californicum J.M. Coult. & Rose - California licorice-root

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