Oxalis regnellii 'Triangularis'
(Lucky Shamrock, Purple and Black False Shamrock)
Origin: Native to South America
Family: Oxalidaceae
Light: Part sun-filtered shade
Height: 0.5-1'
Spacing: 1'
Blooms: Prolific, repeat, pinkish, single, funnel-shaped, Spring-Summer
Foliage: Showy, herbaceous, burgundy, smooth, tri-lobed, triangular leaflets, clover-like, fold up at night
Soil: Well-drained, moist, rich, mildly acidic, neutral, sandy, loamy with peat moss added
Water: Regular, reduce when dormant
Fertilizer: Well-balanced liquid fertilizer weekly during growing season
Uses: Foliage, shade garden, woodland, ground covers, borders. hanging baskets, containers, indoors, rock garden
Propagation: Bulbil divisions
Caution: Plant can be invasive
Insects/Disease: Watch for spidermites
Comments: Oxalis regnellii 'Triangularis' or Lucky shamrock or Purple and Black False Shamrock is an bulbous perennial with a low, clumping, moderate growth habit. It is a native of South America. Oxalis regnellii 'Triantularis' has exquisite purple and black, triangular-shaped, tri-lobed, smooth foliage. It repeatedly produces pinkish, single-petaled, funnel-shaped blossoms. Lucky Shamrock is easily propagated from bulbil divisions. It thrives best in well-drained, moist, acidic, sandy, loamy with peat moss added in a partly shaded environment. Mass plant Purple and Black False Shamrock for a wonderful groundcover in a woodland setting or in borders. Use them under the shade of taller plants. Oxalis regnellii 'Triangularis' spreads by bulbils and soon forms a lovely groundcover. It can also be container cultivated and makes an excellent indoor plant, sitting it by the windowsill. Fertilize weekly with well-balance liquid fertilizer during growth season. It goes dormant about 3 times a year; reduce watering and remove dead leaves only when they have turned brown. Purple and Black False Shamrock makes an ideal hanging basket plant. It is a showy foliage plant in the absence of its flowers. Oxalis regnellii 'Triangularis' is an attention getter.
USDA Zones: 6-10
JennysGarden.com...Plant images and gardensing descriptions of Oxalis regnellii 'Triangularis' (Lucky Shamrock, Purple and Black False Shamrock) growing in Jenny's Garden
