Purple Shamrock (Oxalis triangularis)

Buy Purple Shamrock Plant (Oxalis triangularis) Vibrant Indoor Foliage

Oxalis triangularis, commonly called Purple Shamrock or False Shamrock, enchants with its three-lobed, violet-hued leaves and delicate blush-pink flowers. Perfect for windowsills, tabletop displays, or shaded patios, this perennial adds color, charm, and a touch of luck to any indoor or outdoor space.

Plant Profile

• Botanical Name: Oxalis triangularis
• Common Names: Purple Shamrock, False Shamrock, Lucky Shamrock
• Family: Oxalidaceae
• Native Range: Brazil, Bolivia, Argentina, Paraguay
• Toxicity: Mildly toxic to pets if ingested

Oxalis triangularis Care & Cultivation

• Light: Bright, indirect light maximizes leaf color; tolerates morning sun or afternoon shade.
• Water: Keep soil evenly moist during active growth; allow top 1 to dry before watering and reduce in winter dormancy.
• Soil: Well-draining, slightly acidic mix (pH 5.56.5) enriched with organic matter.
• Humidity: 4060% RH; average home humidity is sufficient.
• Temperature: 6075 F (1524 C); protect from drafts and temps below 55 F.
• Fertilizer: Feed monthly with a balanced water-soluble fertilizer (10-10-10) in spring and summer.
• Propagation: Divide bulbs or corms at planting; offsets form readily.
• Pests & Problems: Monitor for aphids or spider mites and treat early with insecticidal soap.

Read our complete Oxalis Care Guide

Why Youll Love Purple Shamrock

Beyond its dramatic foliage, the Purple Shamrock performs a graceful nightly dance (nyctinasty), folding its leaves at dusk and reopening at dawn. Its folklore associations with luck and renewal make it an enchanting gift or focal point.

Fun Fact

Each triangular leaflet tracks ambient lightan evolutionary adaptation to maximize photosynthesis in understory habitats.

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