Click for previous Image Image 1 of 3 Oxalis regnellii False Shamrock

Oxalis regnellii 'Triangularis'

False Shamrock

Plant Type:


Oxalis regenllii 'Triangularis' (aka Oxalis triangularis) - The well-known Purple Shamrock is beautiful in borders or pots with its sharp-angled triangular leaves set in threes per leaf stem. Centers of the leaves are pink-red-purple while the edges are purple-black. Delicate clusters of funnel bell flowers are pink to lavender pink and erupt through the growing season – even longer when grown as a windowsill plant. It's easy and worthy. Plant in fertile but draining soil. Keep it drier in winter if grown indoors. Full to part sun. Full pots from divisions.


6-12 in


6-12 in


Lavender Pink

Characteristics and Attributes for Oxalis regnellii 'Triangularis'

Season of Interest (Flowering)

  • Spring / Summer / into Autumn

Season of Interest (Foliage)

  • Spring / Summer / into Autumn

Nature Attraction

  • Deer Resistant
  • Honey Bees & Native Bees


  • Morning Sun / Afternoon Shade
  • Mostly Sunny
  • Shade Tolerant


  • Ground Cover
  • Conservatory
  • Potted Plant
  • Massing
  • Border
  • Container
  • Greenhouse / Alpine House
  • Edging
  • Accent

Growth Rate in the Garden

  • Moderately Fast


  • Fertile
  • Draining


  • Brazil

Propagated By

  • Division