Updated: July 18, 2023

The purple oxalis plant, also known as Oxalis triangularis or purple shamrock, is a popular choice among gardeners due to its vibrant purple foliage and unique triangular-shaped leaves. This plant belongs to the Oxalidaceae family and is native to Brazil. It is widely grown as a houseplant and is prized for its ornamental appeal. In this article, we will explore the different types of purple oxalis plants and their distinctive features.

1. Oxalis triangularis

Oxalis triangularis, also known as the true purple shamrock, is the most common variety of purple oxalis plant. It features triangular-shaped leaves that are deep purple in color, making it a striking addition to any indoor garden. The leaves open up during the day and fold back in the evening, creating an ever-changing display. This variety is relatively easy to care for and can thrive in both indoor and outdoor environments.

2. Oxalis triangularis ‘Burgundy’

The Oxalis triangularis ‘Burgundy’ variety is a cultivar of the true purple shamrock. It is known for its intense burgundy coloration, which adds depth and richness to any garden setting. The leaves are slightly larger than those of the original variety and have a glossy appearance. This cultivar requires similar care to the true purple shamrock and can be a stunning centerpiece in any collection.

3. Oxalis triangularis ‘Charmed Wine’

The Oxalis triangularis ‘Charmed Wine’ cultivar stands out with its deep wine-colored foliage. The leaves are reminiscent of a fine red wine, adding elegance and sophistication to any space. It is a compact variety that doesn’t grow as tall as other types of purple oxalis plants, making it an excellent choice for small gardens or container planting. ‘Charmed Wine’ requires well-draining soil and regular watering to flourish.

4. Oxalis triangularis ‘Purple Rain’

The Oxalis triangularis ‘Purple Rain’ variety is distinguished by its delicate, cascading foliage. The leaves are a vibrant purple color and have a graceful trailing habit, making it an ideal choice for hanging baskets or as a groundcover in garden beds. This cultivar is a fast grower and can quickly fill in empty spaces with its lush foliage. It prefers partial shade and moist soil to thrive.

5. Oxalis triangularis ‘Francis’

Oxalis triangularis ‘Francis’ is a unique variety that showcases variegated leaves. The foliage features a combination of purple, green, and silver colors, creating a captivating display. This cultivar is slightly less vigorous than other types of purple oxalis plants, but it compensates with its stunning foliage. ‘Francis’ requires bright indirect light and moderate watering to maintain its variegation.

6. Oxalis triangularis ‘Mijke’

The Oxalis triangularis ‘Mijke’ cultivar is known for its compact growth habit and prolific flowering. It produces delicate pink flowers that complement the purple foliage beautifully. This variety is an excellent choice for adding a touch of color to indoor gardens or as an accent plant in outdoor settings. ‘Mijke’ prefers bright indirect light and regular watering to keep its blooms vibrant.

7. Oxalis triangularis ‘Purpurea’

Oxalis triangularis ‘Purpurea’ is a compact variety that boasts dark purple leaves with a velvety texture. The foliage adds depth and richness to any garden arrangement. This cultivar is relatively low maintenance and can tolerate a range of light conditions, from partial shade to full sun. Regular watering and well-draining soil are essential for the healthy growth of this variety.

In conclusion, the purple oxalis plant offers a variety of options for gardeners looking to add a touch of purple to their indoor or outdoor spaces. From the classic true purple shamrock to the unique variegated foliage of ‘Francis,’ there is a purple oxalis plant to suit every taste and garden setting. With proper care and attention, these plants can thrive and provide a stunning visual display year-round.