Datura inoxia (Moonflower, Angel’s Trumpet, Dawny Thorn Apple) [sometimesDatura innoxia]

Native to tropical (primarily Central) America, this low-lying, herbaceous shrub produces beautiful white bisexual flowers which open at night. These are typically grown as annuals outside of their natural hardiness zones.

Datura inoxia (Moonflower, Angel’s Trumpet, Dawny Thorn Apple) [sometimes Datura innoxia]
Deciduous: no, annual in colder regions
Hardiness Zones: 8-11
Height: 0.6-1.0 meters (2-3 feet) tall
Diameter: 1.0-1.8 meters (3-6 feet) across
Growth Rate: moderate to fast
Age: perennial
Root System: fibrous
Family: Solanaceae
Subspecies: none
Tolerates: drought, alkaline soils
Problems (major): Mealybugs can attack new growth and kill off entire plants if unregulated.
Problems (minor): white flies, spider mites
Poisonous: The entire plant is toxic (toxins atropine and scopalomine) and unfit for consumption. Attempts to use this plant’s toxic properties for “recreational purposes” are often left with serious brain damage or even death (in high enough quantities).
Soil requirements: performs best in nutrient-rich, neutral or alkaline, well-drained soils, prefers loamy/medium soil
Air requirements: slightly intolerant of air pollution
Watering requirement: moderate, keep soil consistently slightly moist
Sun requirement: requires full sun (likely survive in sunny windowsills)
Leaf size: to 20 centimeters (8 inches) long
Leaf shape: ovate, alternate, simple, dark green
Flowering structure: trumpet-shaped, to 10 centimeters (4 inches) wide at the “mouth”, to 18 centimeters (7 inches) long, fragrant
Flowering frequency: typically July into winter (in temperate zones)
Fruits: spherical seed pods with numerous dull spikes, light green turning light brown-tan
Seed: light brown, medium brown center, spherical (similar to Hibiscus syriacus)
Epiphyte: no but exhibits vine-like behavior
Monoecious/dioecious: dioecious

Notable characteristics:
The flowers are hermaphroditic (contain both sex organs and gametes), making them dioecious. The seed pods have numerous spikes and smell foul, a bit like smoke or cigarettes.

These are typically grown for their fragrant flowers.

Sources used:


Fruits, foliage, stems, leaves

All of the images provided were taken by me. They may be used for educational/informational purposes only, provided that this article/online journal is appropriately cited first.


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