Oxalis Corymbosa - Marginal Pond Plants - Pond Plants - Water Plants - BP091

Oxalis corymbosa, also known as the pink-sorrel, is a perennial plant native to several parts of South America but has spread to various regions globally, often considered an ornamental or a weed. This species belongs to the Oxalidaceae family, which is characterized by its distinctive clover-like leaves and small, colorful flowers. Here's a detailed description of its features and habits:

• Leaves : Oxalis corymbosa has trifoliate leaves, meaning each leaf is composed of three heart-shaped leaflets that resemble clover leaves. The leaves are bright green and can sometimes have a purple hue, especially under stress conditions like cold weather. They are known for their nyctinastic movements, closing at night or in response to intense sunlight.
• Flowers : The flowers of Oxalis corymbosa are its most distinguishing feature. They are small, delicate, and typically pink, although variations can occur, with some flowers appearing white or yellow. Each flower has five petals and emerges from the center of the leaf clusters on slender stalks. The flowers are grouped in loose clusters (corymbs), blooming primarily in spring and summer but can occasionally flower throughout the year in warmer climates.
• Growth Habit : This plant forms low, spreading clumps and can grow to about 15-20 cm (6-8 inches) in height. It spreads through both seeds and bulbils (small bulbs), making it quite efficient at colonizing new areas. This characteristic, while beneficial for filling in garden spaces, can also make it invasive in some settings.
• Habitat : Oxalis corymbosa thrives in a variety of conditions, from full sun to partial shade, and prefers well-drained soils. It is commonly found in gardens, lawns, and along roadsides. Its adaptability to different environmental conditions has enabled it to become naturalized outside of its native range.
• Uses : In gardens, Oxalis corymbosa is often used as ground cover or for adding splashes of color in borders, containers, and hanging baskets due to its attractive foliage and flowers. However, gardeners should be aware of its potential to spread and take measures to control its growth if necessary.
• Care and Maintenance : This plant is relatively low-maintenance, requiring occasional watering during dry periods and minimal fertilization. It can be propagated easily from bulbils or seeds. To prevent unwanted spread, it's advisable to remove the flowers before they set seed and to limit the spread of bulbils.

While Oxalis corymbosa is generally considered non-toxic, it contains oxalic acid, like other members of the Oxalis genus, which can be harmful in large quantities. Pets and humans should avoid ingesting it.