Triangular Oxalis Purple Shamrock
Oxalis triangularis
Essentials
At a Glance
Plant Type
Perennial
Height
6 inches
Width
8 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
South America
Toxicity
Non-toxic to pets and humans
The Story
Plant Bio
Oxalis triangularis, commonly known as the Purple Shamrock, is a perennial plant distinguished by its striking, triangular, deep purple leaves and delicate white or pink flowers that bloom in clusters. This cultivar is prized for its vibrant foliage that adds ornamental value even when not in flower, and its ability to thrive indoors with minimal care.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring.
- Mist cuttings lightly to encourage rooting.
- Keep soil consistently moist but not waterlogged.
- Place in partial shade for optimal growth.
- Mulch around plants to retain moisture.
- Divide clumps every 2–3 years for renewal.
Pro Tip
Ensure soil remains moist and well-drained for best results.
Keep It Thriving
Care Guide
Do
- Water regularly during active growth 🌱
- Provide partial shade in hot climates
- Mulch to conserve moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t expose to full, harsh sun in summer
- Refrain from heavy fertilizing
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Plant | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Triangular Oxalis Purple Shamrock questions
What zones can Triangular Oxalis Purple Shamrock grow in?
Triangular Oxalis Purple Shamrock is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Triangular Oxalis Purple Shamrock deer resistant?
Not reliably. Deer may browse Triangular Oxalis Purple Shamrock, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Triangular Oxalis Purple Shamrock bloom?
Triangular Oxalis Purple Shamrock typically blooms in early spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Triangular Oxalis Purple Shamrock need full sun?
Triangular Oxalis Purple Shamrock does best in part shade.
More Oxalis to compare
Oxalis Lasiandra
Oxalis lasiandra
False Shamrock
Oxalis triangularis 'Fanny'
Purple Shamrock
Oxalis stricta 'Plum Crazy'
Purple Shamrock
Oxalis triangularis 'Burgundy'
Lobed Wood Sorrel
Oxalis lobata
Mijke Oxalis
Oxalis triangularis 'Mijke'
Keep exploring
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Grow Triangular Oxalis Purple Shamrock with confidence
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