Oxalis tetraphylla - Iron Cross Shamrock

Ed's Plant Shop

Oxalis tetraphylla - Iron Cross Shamrock

Name: Oxalis tetraphylla - Iron Cross Shamrock
Brand: Ed's Plant Shop
Availability: InStock

EDS00000792

$29.99

Shipping calculated at checkout.

Size

4” Nursery Pot

6” Nursery Pot

Only 3 items in stock!

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Iron Cross Oxalis (Oxalis tetraphylla) – A Lucky Plant With Bold Style

Add a touch of good fortune and one-of-a-kind foliage to your space with the Iron Cross Oxalis. This compact, four-leaf stunner features bright green leaves marked by a deep burgundy cross, paired with charming pink blooms that pop against its vibrant foliage. Easy to grow and loved by collectors, it’s a perfect accent for both indoor containers and outdoor garden beds.

Whether you're gifting for good luck or just love unique plants, Oxalis tetraphylla delivers visual impact, personality, and low-maintenance care.

Plant Profile

Scientific Name: Oxalis tetraphylla (syn. O. deppei)
Common Names: Iron Cross, Good Luck Plant, Wood Sorrel
Family: Oxalidaceae
Native To: Mexico
Toxicity: Mildly toxic to pets if ingested in quantity due to oxalates; safe for humans in moderation

Iron Cross Oxalis Care Guide

Light: Prefers bright indirect light to full sun; tolerates partial shade.
Water: Allow the top inch of soil to dry between waterings; water less in winter during dormancy.
Soil: Well-draining soil with a slightly acidic pH (5.5 - 6.5) is ideal.
Humidity: Moderate (40–60%)
Temperature: Thrives in 60-75°F (15-24°C). Protect from frost.
Feeding: Use a balanced, water-soluble fertilizer (10-10-10 or 20-20-20) monthly during the growing season.
Propagation: Easily propagated by dividing bulbs/corms.
Pests: Generally resilient but may attract aphids, spider mites, or mealybugs.
Toxicity: Mildly toxic to pets if ingested in large amounts due to oxalates. Edible for humans in moderation.

Why Plant Lovers Adore It

Eye-catching four-leaf foliage with rich burgundy centers
Symbol of good luck and prosperity
Easy-care, adaptable, and compact — perfect for apartments and small spaces
Makes a meaningful gift for housewarmings, new beginnings, or just because

History: A Cultivar Rooted in Mexico

Native to Mexico, Iron Cross Oxalis was introduced to the horticultural world in the late 19th century and quickly gained popularity for its distinctive foliage and ornamental appeal. Over time, it became a beloved addition to both gardens and indoor spaces, thriving in containers, hanging baskets, and shaded landscapes.

Want Expert Tips?

Check out our comprehensive Oxalis Care Guide to get in-the-know about our favorite tips, tricks, and techniques on how to keep your lucky shamrocks happy as can be!

Testimonials

★★★★★
This shop has great customer service. Although they mainly sell pots they also have a few plants to sell. I bought one of these plants and it shipped very fast. The plant I received is beautiful but it was the wrong plant. I contacted the shop right away. I told them I will keep the plant but I’d still want to buy the one I wanted. The plant I wanted also cost less so I offered to pay the difference too. The shop apologized for the mistake and said they will send the right plant right away and to keep the plant i already received. I thought that was awesome, thoughtful and very professional and that goes a long way. Thank you so much and I really appreciate that.
Blesi
Kahului,Hi

★★★★★
Simply a beautiful and artistic Peety pot. Will be the pot for an Adenia metamorpha and the two will definitely display awesome artistry.
John
Los Angeles, CA