Doubting Mariposa Lily

(Calochortus ambiguus)

Doubting Mariposa Lily (Calochortus ambiguus)

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Estimated Native Range
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Summary

Calochortus ambiguus, commonly known as Doubting Mariposa Lily, is a deciduous perennial herb native to open grasslands and pine-oak woodlands in the southwestern United States, particularly in Arizona and New Mexico, extending into northern Mexico. It typically grows to a height of 0.2-2 feet (0.06-0.6 meters) and a width of 1-2 feet (0.3-0.6 meters). The plant features grass-like leaves and erect stems, with flowers that are white or very pale lavender, marked by a distinctive green center and reddish-purple anthers. The flowers, which bloom in the spring and summer, are moderately showy and attract pollinators such as bees.

Doubting Mariposa Lily is valued for its drought tolerance and delicate, ornamental flowers, which add a splash of color to rock gardens, native plant gardens, and wildflower meadows. It is best grown in full sun and requires well-drained soils, preferably sandy or rocky, with low water once established. While it is not commonly found in cultivation, it can be a unique addition to a garden with the right conditions. Care should be taken to avoid overwatering, as it can lead to bulb rot. There are no major disease issues, but it can be susceptible to fungal infections if grown in poorly drained soils.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 0.2-1.7 feet
  • Width: 1-1.5 feet
  • Growth Rate: Moderate
  • Flower Color: Pink, Purple, White
  • Flowering Season: Spring, Summer
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Low
  • Drainage: Fast

Common Uses

Drought Tolerant, Low Maintenance, Potted Plant, Rock Garden, Showy Flowers

Natural Habitat

native to open grasslands and pine-oak woodlands in the southwestern United States, particularly in Arizona and New Mexico, extending into northern Mexico

Other Names

Common Names: Arizona Mariposa Lily

Scientific Names: , Calochortus ambiguus, Calochortus watsonii var. ambiguus,

GBIF Accepted Name: Calochortus ambiguus (M.E.Jones) Ownbey