North America Native Plant

Sagebrush Mariposa Lily

Botanical name: Calochortus macrocarpus

USDA symbol: CAMA5

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Sagebrush Mariposa Lily: A Hidden Gem for Western Gardens If you’re looking for a stunning native wildflower that thrives in dry conditions and adds a pop of purple to your garden, meet the sagebrush mariposa lily (Calochortus macrocarpus). This charming perennial is one of those secret weapon plants that seasoned ...

Sagebrush Mariposa Lily: A Hidden Gem for Western Gardens

If you’re looking for a stunning native wildflower that thrives in dry conditions and adds a pop of purple to your garden, meet the sagebrush mariposa lily (Calochortus macrocarpus). This charming perennial is one of those secret weapon plants that seasoned native gardeners swear by – beautiful, low-maintenance, and perfectly adapted to western growing conditions.

What Makes This Native Special?

The sagebrush mariposa lily is a true native of western North America, naturally occurring across British Columbia, California, Idaho, Montana, Nevada, Oregon, and Washington. As a native species, it’s perfectly adapted to local climate conditions and provides authentic habitat value for regional wildlife and pollinators.

This perennial forb (that’s gardener-speak for a non-woody flowering plant) grows as a single crown and reaches about 1.8 feet tall at maturity. Its moderate growth rate means you won’t be waiting forever to see results, but it won’t take over your garden either.

Garden Appeal and Landscape Role

The real showstopper is the flower display in mid-summer. The sagebrush mariposa lily produces conspicuous purple blooms that are simply gorgeous against the plant’s fine-textured green foliage. While the flowers steal the show, the plant maintains an attractive, erect form throughout its growing season.

This lily works beautifully in several garden settings:

  • Native wildflower gardens
  • Rock gardens and alpine plantings
  • Drought-tolerant landscapes
  • Naturalized meadow areas
  • Mixed perennial borders with other western natives

Perfect Growing Conditions

Here’s where this plant really shines – it’s incredibly well-adapted to challenging western growing conditions. The sagebrush mariposa lily thrives in:

  • Soil: Coarse or medium-textured, well-draining soils (avoid heavy clay)
  • Water: Low moisture requirements with high drought tolerance
  • Sun: Full sun (shade intolerant)
  • pH: Slightly acidic to neutral (5.7-7.0)
  • Climate: Hardy to -23°F, needs at least 140 frost-free days
  • Precipitation: Adapted to 7-16 inches annual rainfall

Planting and Care Tips

The good news? Once established, this native is refreshingly low-maintenance. Here’s how to set it up for success:

Propagation: You can grow sagebrush mariposa lily from either bulbs or seeds. Seeds require cold stratification (a winter chill period), so fall planting works well. Commercial availability is limited to specialty native plant suppliers.

Spacing: Plan for 4,800 to 11,000 plants per acre if you’re doing a large naturalized planting, but for home gardens, space individual plants about 12-18 inches apart.

Care Requirements: This plant has low fertility requirements – resist the urge to fertilize heavily. Its root system extends at least 8 inches deep, so ensure good drainage to that depth. The plant is not fire-resistant, so consider placement in fire-prone areas.

Seasonal Care: Allow the foliage to die back naturally after blooming to feed the bulb for next year’s growth. The plant is summer-active, so expect it to look its best during the warmest months.

Wildlife and Pollinator Benefits

Those showy purple flowers aren’t just pretty – they’re pollinator magnets! The mid-summer bloom period provides nectar when many other native plants have finished flowering, making this lily a valuable addition to pollinator-friendly gardens.

Should You Plant It?

If you garden in the western United States or British Columbia and have well-draining soil with full sun exposure, the sagebrush mariposa lily could be a fantastic addition to your landscape. It’s perfect for gardeners who want beautiful flowers without high water requirements or intensive maintenance.

Keep in mind that this isn’t a plant for impatient gardeners – seed propagation is slow, and seedling vigor is low. But for those willing to work with nature’s timeline, you’ll be rewarded with a stunning, authentically regional wildflower that’s perfectly adapted to your local growing conditions.

The sagebrush mariposa lily proves that sometimes the best garden plants are the ones that have been thriving in your region for thousands of years – they just needed someone to notice how wonderful they really are!

How

Sagebrush Mariposa Lily

Grows

Growing season

Summer

Lifespan

Moderate

Growth form & shape

Single Crown and Erect

Growth rate

Moderate

Height at 20 years
Maximum height

1.8

Foliage color

Green

Summer foliage density

Porous

Winter foliage density

Porous

Foliage retention

No

Flowering

Yes

Flower color

Purple

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

Low

Fire Resistant

No

Foliage Texture

Fine

Low-growing Grass

No

Resproutability

No

Coppice Ability

No

Bloat

None

Sagebrush Mariposa Lily

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

Low

Cold Stratification

Yes

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

Medium

Frost-free days minimum

140

Hedge tolerance

None

Moisture requirement

Low

pH range

5.7 to 7.0

Plants per acre

4800 to 11000

Precipitation range (in)

7 to 16

Min root depth (in)

8

Salt tolerance

Low

Shade tolerance

Intolerant

Min temperature (F)

-23

Cultivating

Sagebrush Mariposa Lily

Flowering season

Mid Summer

Commercial availability

Contracting Only

Fruit/seed abundance

Low

Fruit/seed season

Summer to Summer

Fruit/seed persistence

No

Propagated by bare root

No

Propagated by bulb

Yes

Propagated by container

No

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound
Seed spread rate

Slow

Seedling vigor

Low

Small grain

No

Vegetative spread rate

Slow

Sagebrush Mariposa Lily

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

Calochortus Pursh - mariposa lily

Species

Calochortus macrocarpus Douglas - sagebrush mariposa lily

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