Native Plants

Canby’s Licorice-root

Ligusticum canbyi

USDA symbol: LICA2

perennial forb

Canada: native
Lower 48 states: native

If you’re looking for a native plant that’s both beautiful and beneficial, let me introduce you to Canby’s licorice-root (Ligusticum canbyi). This charming perennial might not be the flashiest plant in the garden center, but it’s definitely one worth getting to know – especially if you’re passionate about supporting native ...

Canby’s Licorice-Root: A Hidden Gem for Pacific Northwest Gardens

If you’re looking for a native plant that’s both beautiful and beneficial, let me introduce you to Canby’s licorice-root (Ligusticum canbyi). This charming perennial might not be the flashiest plant in the garden center, but it’s definitely one worth getting to know – especially if you’re passionate about supporting native ecosystems in the Pacific Northwest.

What Makes Canby’s Licorice-Root Special?

Canby’s licorice-root is a true Pacific Northwest native, naturally found across British Columbia, Idaho, Montana, Oregon, Washington, and Wyoming. This hardy perennial belongs to the carrot family and produces delicate white flower clusters that look like tiny umbrellas dancing in the breeze. The compound leaves are finely divided and aromatic when crushed, giving off a pleasant, licorice-like scent that explains its common name.

As a forb – basically a fancy term for a non-woody flowering plant – Canby’s licorice-root grows from the ground up each year, reaching moderate heights perfect for filling in gaps in your native plant garden.

  • Species observed
  • No observations

Why Your Garden (and Local Wildlife) Will Love It

Here’s where Canby’s licorice-root really shines: it’s a pollinator magnet. Those umbrella-shaped flower clusters are like landing pads for beneficial insects, including native bees and flies. By planting this native beauty, you’re essentially setting up a buffet for the good bugs that help keep your garden healthy and thriving.

The plant’s facultative wetland status means it’s adaptable – it can handle both moist and drier conditions, making it a flexible choice for various garden situations. Whether you have a naturally wet spot that needs some native flair or a regular garden bed, Canby’s licorice-root can probably make itself at home.

Perfect Garden Companions and Settings

This native gem works beautifully in:

  • Wildflower meadows and naturalized areas
  • Native plant gardens
  • Mountain-style landscapes
  • Informal cottage gardens with a native twist
  • Medicinal or herb gardens (historically used by Indigenous peoples)

Growing Canby’s Licorice-Root Successfully

Climate Considerations: This tough customer thrives in USDA hardiness zones 3-7, so it can handle some serious cold – perfect for mountain gardens and northern regions.

Site Selection: Choose a spot with moist, well-drained soil and partial shade to full sun. Think about where you might find this plant in the wild – mountain meadows, forest edges, and streamside areas. Recreating these conditions will make your plant happiest.

Planting Tips:

  • Spring is typically the best time to plant
  • Ensure consistent moisture, especially during establishment
  • Mulch around the base to retain soil moisture
  • Give plants adequate space for their mature size

Ongoing Care: Once established, Canby’s licorice-root is refreshingly low-maintenance. The key is keeping the soil consistently moist but not waterlogged. This isn’t a plant it and forget it species, but it’s also not going to demand constant attention.

Is Canby’s Licorice-Root Right for Your Garden?

If you’re someone who appreciates subtle beauty over flashy showstoppers, loves supporting native ecosystems, and enjoys plants with interesting botanical stories, then yes – Canby’s licorice-root could be a wonderful addition to your landscape. It’s particularly perfect for gardeners in the Pacific Northwest who want to create authentic native plant communities.

However, if you’re looking for bold, colorful blooms or plants that thrive in hot, dry conditions, you might want to explore other native options better suited to those needs.

The Bottom Line

Canby’s licorice-root represents the best of native gardening – it’s regionally appropriate, supports local wildlife, and brings a piece of natural Pacific Northwest beauty right to your backyard. While it might not win any Most Dramatic Plant awards, it will quietly and reliably contribute to a healthy, sustainable garden ecosystem year after year. And honestly, isn’t that exactly what we need more of in our gardens?

Ligusticum canbyi is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Ligusticum canbyi is also known as:

Ligusticum caeruleimontanum | USDA symbol: LICA23
Ligusticum leibergii & | USDA symbol: LILE6

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Arid West (AZ, CA, CO, ID, MT, NV, NM, OR, TX, UT, WA, WY)

Facultative

Western Mountains, Valleys, and Coast (AZ, CA, CO, ID, MT, NV, NM, OR, SD, UT, WA, WY)

Facultative
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Apiales
Family: Apiaceae Lindl. - Carrot family
Genus: Ligusticum L. - licorice-root

Species: Ligusticum canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose - Canby's 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