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Datura

Datura stramonium · Solanaceae

The gardener's calendar

The right move for September

Ideal time to plant datura: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous
Flowering
July to September
Adult size
60 to 150 cm in height
Growth
Fast
Hardiness
Non-hardy, annual or biennial
Origin
North and Central America
Soil type
Well-draining, rich in organic matter

Care

Exposure and light

Datura stramonium needs a sunny exposure for optimal flowering, with at least 6 to 8 hours of direct sunlight per day. It also tolerates partial shade but will be less floriferous. Place it in a location sheltered from strong winds that could damage its stems and flowers.

Watering

Water regularly during the growth period, keeping the soil moist but not waterlogged. Reduce watering at the end of the season. In case of prolonged drought, increase the frequency to avoid water stress that would slow growth and flowering.

Soil and repotting

Prepare rich, well-draining soil lightly amended with compost or decomposed organic matter. Datura prefers fertile substrate to express its vigor. An application of well-developed compost at the beginning of the season promotes harmonious growth.

Fertilization

Apply balanced fertilizer every 3 to 4 weeks during the active growth phase. Favor moderate application as excess nitrogen would promote foliage at the expense of flowering. Stop fertilizing at the end of summer.

Pruning and maintenance

Remove spent flowers regularly to extend flowering. You can pinch the tips of young stems to encourage a bushier shape. No drastic pruning is necessary; just keep up with light and regular maintenance.

Pests and diseases

Datura is generally resistant to pests thanks to its natural chemical composition. However, watch for spider mites or aphids in dry or hot conditions. Good watering and moderate ambient humidity reduce these risks.

Did you know?

Datura stramonium is mainly known for its dramatic history: its toxic alkaloids have been the subject of abundant literature since antiquity, used in ritual or shamanic contexts. Its magnificent white or purple trumpet-shaped flowers hide a formidable plant from which you must never consume any part, including seeds. Despite its danger, its botanical originality has made it a privileged subject of study for botanists and toxicologists.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.