North America Native Plant

Goldenbowl Mariposa Lily

Botanical name: Calochortus concolor

USDA symbol: CACO4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Calochortus luteus Douglas ex Lindl. var. concolor Baker (CALUC)   

Goldenbowl Mariposa Lily: A California Native Gem Worth Protecting If you’re looking to add a touch of golden sunshine to your California native garden, the goldenbowl mariposa lily (Calochortus concolor) might just be the perfect choice. This stunning perennial bulb produces some of the most gorgeous yellow blooms you’ll find ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Goldenbowl Mariposa Lily: A California Native Gem Worth Protecting

If you’re looking to add a touch of golden sunshine to your California native garden, the goldenbowl mariposa lily (Calochortus concolor) might just be the perfect choice. This stunning perennial bulb produces some of the most gorgeous yellow blooms you’ll find in the wild West, but there’s more to this beauty than meets the eye.

What Makes This Lily Special?

The goldenbowl mariposa lily is a true California native, found nowhere else in the world. Its botanical name, Calochortus concolor, literally means beautiful grass of one color, which perfectly describes its striking golden-yellow flowers. These bowl-shaped blooms, typically 2-3 inches across, appear in late spring to early summer and seem to capture sunlight in their petals.

As a herbaceous perennial forb, this plant grows from underground bulbs and dies back to the ground each year, spending the hot California summers in dormancy – a pretty smart survival strategy if you ask us!

Where Does It Call Home?

This lovely lily is exclusively native to California, where it grows naturally in foothills and mountain slopes throughout the state. You’ll find it thriving in areas with Mediterranean-style climates, where wet winters are followed by dry summers.

A Word of Caution: Conservation Matters

Here’s something important to know: the goldenbowl mariposa lily has a conservation status of S3S4, meaning it’s somewhat uncommon in the wild. While this doesn’t mean you shouldn’t grow it, it does mean you should be extra careful about where you source your bulbs. Always purchase from reputable native plant nurseries that responsibly propagate their stock – never collect bulbs from wild populations.

Why Your Garden (And Local Wildlife) Will Love It

Beyond its obvious beauty, the goldenbowl mariposa lily offers several benefits:

  • Attracts native bees and butterflies with its bright, nectar-rich flowers
  • Requires minimal water once established, making it perfect for drought-tolerant landscapes
  • Adds authentic California character to native plant gardens
  • Works beautifully in rock gardens and naturalized areas
  • Supports local ecosystem health by providing food for native pollinators

Growing Your Own Goldenbowl Mariposa Lily

Successfully growing this California native requires understanding its natural rhythm. Here’s what you need to know:

Perfect Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is absolutely essential – these bulbs will rot in soggy conditions
  • Water: Minimal water during the growing season, completely dry during summer dormancy
  • Climate: Thrives in USDA hardiness zones 7-10

Planting and Care Tips

Plant your goldenbowl mariposa lily bulbs in fall, about 3-4 inches deep. The key to success is mimicking their natural habitat – think Mediterranean rather than tropical paradise. During their active growing period (fall through spring), they’ll appreciate occasional watering, but come summer, they need to stay bone dry.

This might seem counterintuitive to gardeners used to keeping plants constantly moist, but remember: these beauties have evolved to survive California’s dry summers by going completely dormant. Fighting this natural cycle is a recipe for disappointment.

Perfect Garden Companions

The goldenbowl mariposa lily pairs beautifully with other California natives that share similar water needs, such as:

  • California poppies
  • Ceanothus species
  • Native bunch grasses
  • Manzanita shrubs
  • Other drought-tolerant Mediterranean plants

Is This Plant Right for Your Garden?

The goldenbowl mariposa lily is perfect for gardeners who want to create authentic California landscapes while supporting local wildlife. It’s ideal if you’re looking to reduce water usage, create habitat for native pollinators, or simply enjoy some of the most beautiful yellow flowers nature has to offer.

However, it might not be the best choice if you prefer plants that provide year-round foliage or if you can’t resist the urge to water everything during hot summer months. This lily demands respect for its natural dormancy period.

By choosing to grow the goldenbowl mariposa lily, you’re not just adding beauty to your garden – you’re becoming a steward of California’s unique botanical heritage. Just remember to source your bulbs responsibly, and you’ll be rewarded with years of golden springtime magic.

Goldenbowl 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 concolor (Baker) Purdy - goldenbowl 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