Four Oclock Flower Perennial. Four OClocks as Perennials - Four OClock flowers can be grown as perennials in warner climates like North Carolina as this resource states. Mirabilis jalapa the marvel of Peru or four oclock flower is the most commonly grown ornamental species of Mirabilis plant and is available in a range of colours.
Opposite sessile or petioled pairs generally unequal. Flowers open late afternoon. Grow four oclocks in poor to average soil for the most abundant production of four oclock flowers.
Four oclock which grows from underground tubers is perennial in warm climates but survives only with special treatment in cool climates.
One key decision point is whether or not you can count on your ground staying unfrozen in which case you might have a thriving perennial. Four OClocks as Perennials - Four OClock flowers can be grown as perennials in warner climates like North Carolina as this resource states. Opposite sessile or petioled pairs generally unequal. This heirloom non gmo flowering plant grows between 18 - 36 inches tall.