Purple Shamrocks
Oxalis triangularis
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Purple Shamrocks is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Delivery and Shipping
Fast, Safe Plant Delivery
Ships in 3-4 business days • Tracking provided • Weather protected
Under $50 | $9.99 |
$50 - $99.99 | $14.99 |
$100 - $149.99 | $16.99 |
$150+ | $24.99 |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Purple Shamrocks highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateFast
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Pollinator Friendly
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Pruning Time
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Bloom PeriodSummer

Growing Zones 7-10 (all zones as a houseplant)
Purple Shamrocks (Oxalis triangularis) are going to be a delightful houseplant, patio planter, or garden addition this year if you are looking for a purple-foliaged flowering accent plant! Delicate-looking clover-like leaves arrive in deep dark purple and are adorned in bright white, miniature trumpet-like flowers that butterflies adore! You will love the subtle plum chevron on each triangular leaf!
Although Oxalis is a perennial, this plant blooms like an annual from late spring to early fall if kept moist. These are annuals outdoors but can be brought inside for the winter as houseplants. Purple Oxalis does not set viable seeds, so there's no need to fear that it will become a nuisance in the garden. It is a prolific grower and bloomer with beautiful foliage and plenty of dainty blossoms!
Planting and Application:
Purple Shamrocks form a low mound that is the perfect size for edging or container fillers! Like many Oxalis, the leaves of this variety close up at night or when light levels are very low, adding motion and kid-friendly elements to your garden!
This variety has been used in southern gardens for many years. Oxalis plants are used as edging, along the fronts of garden borders, pollinator and walkway gardens, Rock Gardens, and in containers on porches or patios! Mass these easy-going plants for drifts and groupings of color in sun or part shade!
- Deep Purple Clover-Like Leaves
- Plum Chevron Accents
- White Trumpet-Shaped Blooms
- Lovely Mounded Form
- Accents, Container Fillers, Garden Focal Points & Edging
#ProPlantTips for Care:
Purple Shamrocks are root hardy in USDA growing zones 7-8 but make great houseplants or annual accents in cooler growing zones. Growing into low mounds only 6 in height and spreading into loose mounds 6-8 inches wide, they’re remarkably easy to grow! Provide full sun to partial shade for these fast-growing plants. During the growing season, and should receive consistent, moderate moisture and these are heavy feeders. Container-grown plants should be kept just moist when dormant.
- Full Sun
- Well-Drained Moist Soil
- Regular Fertility
- Fast Growing & Easy Care
- Vigorous Annual, Houseplant, or Perennial in Warm Zones
Darling Purple Shamrocks will add luscious mounded color and dainty blossoms to your garden and container plantings! Order these hardy bareroot plants from NatureHills.com today!