Moonflower (Datura wrightii)

Datura wrightii

Datura wrightii is a southwestern thorn apple that forms a broad mound with large white trumpets that open at night. It stands out for earlier bloom in warm regions and for strong fragrance that attracts hawk moths. Plants tolerate heat, alkaline soils, and drought once established. It is perennial in mild to hot climates and is grown as an annual in colder areas. In the Southwest bloom can extend from spring through fall when nights are warm.

At‑a‑glance

  • Group/Class: thorn‑apple
  • Height × spread: 2 to 5 ft × 3 to 6 ft (0.6 to 1.5 m × 0.9 to 1.8 m)
  • Bloom window: spring to fall in warm regions
  • Color & flower form: white trumpet up to about 6 in long; sometimes purple edged
  • Fragrance: 3 strong
  • USDA hardiness: zones 8 to 12; grown as annual in colder zones
  • Breeder / Year / Origin: unknown
  • Pet safety: avoid

How it differs

  • Starts blooming earlier than many night bloomers in hot deserts.
  • Builds a wide, low mound rather than a vine canopy.
  • Very tolerant of drought and poor soils once established.
  • All parts are poisonous and the spiny capsules persist after bloom.

Strengths

  • High heat and drought tolerance once established.
  • Long bloom in warm climates.
  • Deer resistant foliage.
  • Supports night moths and evening garden interest.

Care in one minute

  • Site: full sun with very good drainage; heat reflecting surfaces help.
  • Soil and pH: sandy or gravelly soils; neutral to alkaline.
  • Water: water deeply to establish; then water sparingly.
  • Feeding: minimal feeding in poor soils.
  • Grooming: remove spent blooms and seed pods if you wish to limit reseeding.
  • Overwintering: mulch crowns in zone 8; treat as annual in colder zones.

Watch‑outs

  • All parts are toxic to people and animals.
  • May self sow and spread in disturbed sites.
  • Can cause skin irritation in sensitive people when handled.

Best uses (tags)

  • xeriscape
  • night garden
  • pollinators
  • native plantings
  • slopes

Provenance note

This species is native to the southwestern United States and northern Mexico and has long been documented as a desert and roadside plant.

References

Written by: Your Flowers Guide editorial team
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