Oxalis triangularis aka Wood Sorrel

Taxonomy

Oxalis triangularis, also known as false shamrock, is a species of herbaceous perennials belonging to the family Oxalidaceae. It is native to several countries in southern South America and can be grown outside in USDA climate zones 8a–11 in light shade. The distinctive deep maroon trifoliate leaves fold down at night and in harsh sunlight, whilst its tiny, white or pale pink five-petalled flowers close at night or before rainfall. False shamrock is relatively easy to grow and likes long-lasting, direct light, with well-draining soil that should not need added fertilisers if it is repotted every time it doubles in size.

Common names

Wood Sorrel, Purple Shamrock, Butterfly Plant

How to care for Wood Sorrel

Difficulty

With a bit of knowledge and dedication, you can successfully care for Wood Sorrel, making it a rewarding choice for those seeking a moderate challenge.

Water

Wood Sorrel should be watered regularly, allowing the soil to dry out between waterings.

Soil

Wood Sorrel loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

To ensure optimal growth, the Wood Sorrel prefers bright indirect light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

Dormancy

During the wintertime, it is common for Wood Sorrel plants to go dormant and their growth rate may slow down. Therefore, the amount of waterings should be spaced out more.

Toxicity

Wood Sorrel is poisonous if ingested. We suggest keeping this plant out of reach if you have children, cats, or dogs in the home.

Humidity

No extra humidity is necessary for the Wood Sorrel. Absorption of water by plants is primarily done through their roots, and soil watering is the most effective method to provide humidity to your plants.

Fertilizer

The Wood Sorrel is characterized by its slow growth and doesn't need fertilization in addition to its potting soil. By renewing the soil in its pot once a year, it should have enough nutrition. Remember, plants get their energy from sunlight, not from any fertilizers.

Growth-pattern

Clumping is a defining characteristic of the Wood Sorrel, with new growth appearing from the soil surrounding the primary plant.

Region of origin

Wood Sorrel’s native range is Worldwide.

Flower

Yes, if you provide your Wood Sorrel with adequate sunlight and water, you can expect it to bloom.


More info:
Wikipedia