Four Oclock Flower Hardy. The thicker the layer the better the protection. Hardy and grown as a perennial in zones 7b-11 gardeners in other zones often grow these beauties as annuals.
May 05 2021 Four oclocks grown in zones 7-11 need very little help to survive the winter because although the plant dies down the tubers remain snug and warm underground. 22 x 30 inches. Mirabilis jalapa was cultivated by the Aztecs for medicinal and ornamental purposes.
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175 x 235 inches. In colder climates they are grown as annuals or at the end of the season the tubers are be dug up and stored indoors during the winter like dahlia tubers. Mission San Diego 1991. Four oclock are hardy bushy perennials that can grow more than 4 feet tall.