Description
Oxalis Triangularis Purple Shamrock Bulbs – Dramatic Purple Leaves & Delicate Pink Flowers
Deep plum-purple leaves, dainty blush-pink blossoms, magical moving foliage, and a whole lot of cottage garden WOW!
Who says flowers have to steal the show?
Meet Oxalis Triangularis, the extraordinary Purple Shamrock that proves beautiful foliage can be every bit as breathtaking as a garden full of blooms!
This captivating ornamental plant features striking deep purple, heart-shaped leaflets arranged in elegant, three-part shamrock formations.
The rich, velvety coloring ranges from dramatic plum-purple to nearly burgundy, creating a spectacular display that brings instant color and character to containers, houseplant collections, and garden borders.
And these aren't just any ordinary leaves!
Purple Shamrock foliage actually moves throughout the day!
As evening approaches, the beautiful triangular leaflets gently fold together, almost as though the plant is settling down for a good night's sleep.
Then, when morning arrives and light returns, the leaves reopen to reveal their gorgeous purple coloring once again.
It's a delightful little performance that makes Oxalis Triangularis one of the most fascinating plants to grow!
And just when you think this beauty couldn't get any more charming, delicate flowers appear above the colorful foliage.
Soft whitish-pink to blush-pink blossoms rise gracefully on slender stems, creating a lovely contrast against the rich purple leaves.
Under favorable growing conditions, Purple Shamrock can produce flowers throughout the summer, bringing an extra touch of romance to its already spectacular appearance.
Growing approximately 6–8 inches tall, Oxalis Triangularis forms a compact, graceful mound of decorative foliage that's absolutely perfect for smaller garden spaces.
Its petite size makes it especially beautiful in decorative containers, patio planters, windowsill pots, and mixed arrangements.
Imagine a charming ceramic pot overflowing with deep purple shamrock leaves and delicate pink flowers!
Absolutely irresistible!
And here's another wonderful reason to fall in love with this plant:
Oxalis Triangularis can be grown as a houseplant or enjoyed outdoors during the warmer months.
In mild climates, it can grow outdoors as a perennial where winter conditions are suitable. In colder regions, it makes a beautiful container plant that can be brought indoors before freezing temperatures arrive.
Whether you're creating a whimsical cottage garden, adding dramatic foliage to a patio container, or searching for a unique indoor plant, Oxalis Triangularis Purple Shamrock bulbs deliver extraordinary color, graceful movement, and unforgettable charm.
Why We Love Oxalis Triangularis Purple Shamrock
- Spectacular Deep Purple Foliage: Rich plum-purple leaves bring dramatic color to gardens, containers, and indoor spaces.
- Beautiful Shamrock-Shaped Leaves: Three heart-shaped leaflets create an elegant, symmetrical display.
- Magical Moving Foliage: Leaves fold at night and reopen in response to daylight.
- Delicate Pink Flowers: Soft whitish-pink blossoms create a beautiful contrast against the dark foliage.
- Lovely Summer Blooms: Can flower throughout summer when growing conditions are favorable.
- Perfect for Containers: Compact growth makes it ideal for decorative pots, patios, and windowsills.
- Wonderful Houseplant: Enjoy its colorful foliage indoors throughout much of the year.
- Easy to Grow: A rewarding ornamental plant with modest water needs and versatile growing options.
Bulb Details & Growing Information
- Product Name: Oxalis Triangularis Purple Shamrock
- Botanical Name: Oxalis triangularis
- Common Names: Purple Shamrock / False Shamrock / Purple Oxalis
- Plant Type: Tender Herbaceous Perennial Grown From Underground Storage Structures (commonly sold as bulbs)
- Supplier-Listed Hardiness Zones: 6–10
- Mature Height: 6–8 inches
- Mature Spread: Approximately 4 inches
- Recommended Spacing: Approximately 3–4 inches apart
- Sun Exposure: Full Sun to Partial Sun; Bright Indirect Light Preferred Indoors
- Bloom Time: Approximately 8–10 Weeks After Planting Under Suitable Conditions
- Flowering Season: Summer, with the Potential for Repeated Flowering
- Flower Color: Soft Whitish-Pink to Blush Pink
- Foliage Color: Deep Purple to Plum-Burgundy
- Foliage Form: Three Heart-Shaped, Triangular Leaflets
- Special Feature: Leaves Fold at Night and Reopen in Daylight
- Water Needs: Moderate to Low; Allow the Upper Soil to Dry Slightly Between Waterings
- Soil Preference: Loose, Well-Draining Soil or Potting Mix
- Planting Season: Spring Outdoors; Can Be Started Indoors in Suitable Conditions
- Best Uses: Houseplants, Decorative Containers, Patio Planters, Cottage Gardens, Borders & Foliage Displays
When & How to Plant Oxalis Triangularis Purple Shamrock Bulbs
Plant for a Spectacular Display of Deep Purple Foliage & Delicate Pink Flowers!
Growing Oxalis Triangularis Purple Shamrock is a wonderful way to add rich color and whimsical movement to your home or garden.
Although commonly called bulbs, Purple Shamrock grows from small underground storage structures that may be described as rhizomes or tubers.
These are easy to establish in containers or garden beds when provided with well-draining soil, appropriate warmth, and balanced moisture.
Outdoor Planting Instructions
- When to Plant: Spring, after the danger of hard frost has passed.
- Planting Depth: Approximately 1–2 inches deep.
- Spacing: Approximately 3–4 inches apart.
- Planting Position: Place the underground planting pieces horizontally or according to their visible growing points; exact orientation is generally less important than proper depth.
- Sunlight: Full sun to partial sun, with protection from intense afternoon heat in warmer locations.
- Soil: Loose, fertile, well-draining soil.
- Watering: Water after planting, then maintain light to moderate moisture during active growth without allowing the soil to become soggy.
- Flowering Time: Approximately 8–10 weeks after planting under favorable conditions.
Helpful Planting Tip: Purple Shamrock often produces its richest foliage color when given plenty of bright light without excessive heat. In hot summer climates, gentle morning sunshine and some afternoon shade can help protect the leaves.
Growing Purple Shamrock Indoors
Want to enjoy those gorgeous purple leaves all year long?
Oxalis Triangularis makes a beautiful and fascinating houseplant!
Its compact growth habit, dramatic coloring, and delicate pink flowers make it a wonderful choice for sunny windowsills, plant shelves, and decorative indoor containers.
For the best results:
- Choose a Bright Location: Place your Purple Shamrock near a window with bright indirect light or gentle direct morning sunlight.
- Use a Pot With Drainage: Avoid containers that allow excess water to collect around the roots.
- Water Carefully: Water when the upper portion of the potting mix begins to dry, rather than keeping the soil constantly wet.
- Avoid Excessive Heat: Protect the foliage from intense afternoon sun through hot window glass.
- Rotate Occasionally: Turn the pot periodically to encourage even growth.
One of the most charming things about growing Purple Shamrock indoors is watching its leaves open and close in response to changing light.
The plant may also enter a natural dormant period, during which some or all of its foliage dies back.
If this happens, reduce watering while the plant rests and resume normal care when fresh growth begins.
Don't worry if your Purple Shamrock takes a little nap! Dormancy can be a normal part of its growth cycle.
How to Care for Oxalis Triangularis Through Winter
In warm climates with suitable growing conditions, Purple Shamrock may survive outdoors as a perennial.
However, winter survival depends on local temperatures, drainage, and the protection available to its underground growing structures.
Although the supplier lists Zones 6–10, outdoor overwintering in the colder portion of that range can be uncertain, especially during unusually cold or wet winters.
In colder climates, growing Purple Shamrock in containers is often the easiest way to enjoy it from year to year.
Before freezing temperatures arrive, bring container-grown plants indoors to a bright location.
If the plant enters dormancy, allow the foliage to die back naturally, reduce watering, and keep the underground structures in a protected, frost-free environment.
When new growth appears, gradually resume watering and provide bright light.
Our Cottage Garden Tip
Add a little purple magic to your cottage garden!
For a breathtaking display, plant Oxalis Triangularis Purple Shamrock bulbs in decorative containers, allowing their rich plum-colored leaves to create a beautiful mound of dramatic foliage.
Pair Purple Shamrock with soft pink begonias, creamy white flowers, pale lavender blooms, or silvery-green foliage for a romantic cottage garden combination.
Its deep purple coloring looks especially beautiful against white ceramic pots, aged terracotta containers, and natural stone planters.
Want a little extra drama?
Combine Purple Shamrock with chartreuse foliage, lime-green plants, or soft golden accents for a striking contrast.
For an enchanting indoor display, place a pot of Purple Shamrock on a bright windowsill where you can enjoy its fascinating leaf movement throughout the day.
The delicate pink blossoms rising above the dark purple foliage make this charming plant feel like a miniature garden all its own.
Maryland Gardeners: Oxalis Triangularis is a lovely choice for summer containers and protected garden spaces throughout Maryland.
Because outdoor winter survival can be unreliable in colder Maryland locations, we recommend growing Purple Shamrock in containers that can be moved indoors before frost.
For the best summer foliage, provide bright morning sunlight with some afternoon protection during periods of intense heat.
Keep the soil well drained, and avoid overwatering during periods of dormancy.
Important: Oxalis contains soluble oxalates that can be harmful to pets if ingested. Keep Purple Shamrock away from curious cats, dogs, and other animals.
Deep Purple Shamrocks. Delicate Pink Blossoms. A Whole Lot of Cottage Garden WOW!
FREE SHIPPING/SHIPPING CHARGES
In order to offer the most selection and all of our favorite cottage garden flowers and veggies, we offer seeds and bulbs from several different suppliers.
ONLY seeds (not bulbs) are available for free shipping on orders of $35 or more. You may see more than $35 of seeds in your cart and still not qualify for free shipping if you haven't met that minimum PER SUPPLIER. Sorry for any confusion this may cause! You will always get free shipping on seed orders of $35 or more PER supplier.
You will also see multiple shipping charges for bulbs, seeds, and tools/garden supplies. This isn't duplicate shipping—you're being billed by each supplier that is shipping your order.
Need help planning your garden? Download our seed starting resources:
Cottage Cutting Garden Handbook
Winter Sowing 101
Bloom Time Guide
Direct Sow Cottage Garden Plan
Cottage Garden Plans
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