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common name: Four O'Clock, Marvel of Peru, Belle de nuit
synonyms: Mirabilis jalapa ssp. lindheimeri, Mirabilis lindheimeri
poisonous or irritant
full sun, part shade
moist soil, clay soil, sandy soil
preferred soil pH: neutral
minimum temp: -5°C
USDA zone: 8 to 11
Tuberous perennial with a bushy habit and ovate leaves. Very fragrant small trumpet shaped flowers, usually pink but may be red, yellow or white, from June to October. They open late in the afternoon and last overnight.
Best in fertile, moist, well-drained soil in full sun or part shade. Not very hardy, but will survive a certain amount of frost as long as the tubers are given some protection against being completely frozen. The tubers can also be lifted for winter like Dahlias.
Can also be treated as an annual.
From seed or by dividing tubers.
The roots and seeds have sometimes been used as a medicinal herb, generally for the treatment of constipation or intestinal worms and also externally for skin problems.
Native to South America. Naturalised in some parts of Europe.
All parts are toxic, causing stomache pains, vomiting and diarrhea.
pronounced: mih-RAB-ih-liss juh-LAP-uh