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Dietes vegeta (Moraea iridioides)

Fortnight Lily
  • Plant Type:
  • Perennial, Shrub
  • Evergreen-Deciduous:
  • Evergreen
  • Overall Mature Size:
  • Small
  • Also Grown As:
  • Bush
  • Mature Height & Spread :
  • 3-4' x 3-4'
  • Natural Growth Habit:
  • Vase
  • Native To:
  • Africa
  • Exposure:
  • Full Sun, Partial Shade
  • Water:
  • Medium Water
  • Flower Color:
  • White
  • Bloom Time:
  • Spring, Summer, Fall
  • Special Features:
  • Deer Resistant, Desert Conditions, Drought Resistant, Seacoast Conditions
  • Container Sizes:
  • #1, #5, #15
  • Sunset Garden Zones:
  • 8, 9, 12-24


Elegant long grass-like leaves with stalks of regal iris-like flowers distinguish Dietes vegeta, one of Boething Treeland Farms most requested plants. Blooming nearly year-round at approximately two week intervals (hence the name Fortnight Lily), this east African native is a stunning addition and looks well in rock gardens or amongst other perennials, as a base planting or in containers. A tidy shrub, it rarely exceeds 3-4 feet in height and width and is an excellent subject for gardens surrounding swimming pools. The 3-inch wide flowers are composed of 3 different types of petals, two white and one purple with blotches of yellow thrown in for good measure. They strongly resemble small iris and last only one day each though another bloom is sure to follow. Given regular water and partial to full sun at the outset, it will survive much abuse later in life. Suggested for Sunset Western Garden Climate Zones 8, 9, and 12-24, it tolerates drought, fire damage, and seacoast conditions.