North America Native Plant

Large Camas

Botanical name: Camassia leichtlinii leichtlinii

USDA symbol: CALEL6

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Large Camas: A Pacific Northwest Native That Brings Prairie Magic to Your Garden If you’re looking to add some authentic Pacific Northwest charm to your garden, large camas (Camassia leichtlinii leichtlinii) might just be the perfect native plant you’ve been searching for. This perennial forb brings both beauty and ecological ...

Large Camas: A Pacific Northwest Native That Brings Prairie Magic to Your Garden

If you’re looking to add some authentic Pacific Northwest charm to your garden, large camas (Camassia leichtlinii leichtlinii) might just be the perfect native plant you’ve been searching for. This perennial forb brings both beauty and ecological value to any landscape, creating stunning displays that would make any prairie proud.

What Makes Large Camas Special

Large camas is a true native treasure, naturally occurring in Oregon where it has been thriving for centuries. As a member of the lily family, this herbaceous perennial grows from a bulb and produces impressive flower spikes that can reach 2-4 feet tall. The star-shaped blooms, typically blue to purple in color, are arranged in dense racemes that create a spectacular show in late spring to early summer.

Unlike woody plants, large camas is classified as a forb – essentially a flowering plant that lacks significant woody tissue above ground. Its perennating buds remain at or below the soil surface, allowing it to return year after year with minimal fuss.

Where Large Camas Calls Home

This beautiful native is found naturally in Oregon, where it has adapted to the region’s unique climate patterns. Large camas thrives in areas that experience wet winters and relatively dry summers – a growing pattern that makes it perfectly suited for Pacific Northwest gardens.

Why Your Garden (and Local Wildlife) Will Love It

Large camas isn’t just a pretty face – it’s a pollinator magnet! The abundant flowers provide nectar and pollen for bees, butterflies, and other beneficial insects. This makes it an excellent choice for anyone looking to support local wildlife while creating a beautiful landscape.

From a design perspective, large camas works wonderfully in:

  • Native plant gardens
  • Prairie-style plantings
  • Rain gardens
  • Naturalized areas
  • Wildflower meadows
  • Moist woodland edges

Growing Large Camas Successfully

The good news is that large camas is relatively easy to grow, especially if you can mimic its natural habitat conditions. Here’s what you need to know:

Climate and Hardiness

Large camas is hardy in USDA zones 4-9, making it suitable for a wide range of climates. It’s particularly well-adapted to areas with wet winters and dry summers.

Light and Soil Requirements

This adaptable native performs well in full sun to partial shade. It prefers moist, well-draining soil but can tolerate a range of soil types. The key is ensuring good drainage while providing adequate moisture during the growing season.

Planting Tips

Plant large camas bulbs in fall, about 4-6 inches deep and 6-8 inches apart. This gives them time to establish their root system before the growing season begins. Choose a location where they can naturalize, as they look best when allowed to form colonies over time.

Care and Maintenance

Once established, large camas is refreshingly low-maintenance. Water regularly during the growing season, but allow the soil to dry out somewhat in summer after flowering. Most importantly, resist the urge to cut back the foliage immediately after flowering – let it die back naturally so the bulb can store energy for next year’s display.

Is Large Camas Right for Your Garden?

Large camas is an excellent choice for gardeners who want to incorporate native plants into their landscapes. It’s particularly perfect if you’re creating a rain garden, prairie planting, or simply want to support local pollinators. The plant’s tolerance for both moist and drier conditions makes it versatile for various garden situations.

Keep in mind that like many bulbous plants, large camas will go dormant after flowering, so plan accordingly by interplanting with other perennials that will provide interest later in the season.

Whether you’re a seasoned native plant gardener or just starting to explore indigenous species, large camas offers the perfect combination of beauty, ecological value, and easy care that makes it a worthwhile addition to any Pacific Northwest garden.

Large Camas

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Camassia Lindl. - camas

Species

Camassia leichtlinii (Baker) S. Watson - large camas

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