Datura, or Angel's trumpet, is a tropical plant from the nightshade plant family, according to Colorado State University. (See References 1) Gardeners in cooler climates grow this plant as an annual or indoors as a houseplant.
Datura prefers a hot climate but grows well in any sunny location with adequate temperature. The minimum temperature for this plant is 4.44 degrees Celsius, according to Iowa State University Extension.
Gardeners living in areas where winter temperatures fall below 4.44 degrees Celsius must either plant datura only as an annual or bring it indoors over the winter months. Spray down the plant with water before moving it indoors to avoid bringing insects inside.
Growing datura indoors requires plenty of light and moisture. Set the plant in a sunny location near a window and water it as soon as the top layer of soil becomes dry. Prune the plant back before bringing inside if it is too large to comfortably accommodate in your home, recommends the University of Vermont.
Overwinter just the fleshy rhizomes covered with soil in a container rather than keeping it as an indoor houseplant. Place it in a cool, dark location and begin exposing it to temperatures between 11.7 and 17.8 degrees Celsius, along with natural light beginning in March.
Consider saving seeds from your datura plant when they develop during the summer. You can plant them and grow datura once again the next season. Most people find this more convenient, the University of Washington reports.
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