Oxalis Volcanic Sorrel

Volcanic Sorrel | Oxalis spiralis ssp. vulcanicola | Volcanic Oxalis | Spiral Sorrel

Volcanic Sorrel is a vibrant, trailing subshrub (grown as an annual or houseplant in cooler climates) prized for its striking, clover‑like foliage that shifts in stunning shades of green, yellow, copper, and burgundy depending on sun exposure. This captivating selection from the Oxalis family is known for its cascading habit, exceptional heat tolerance, and delicate, bright yellow, cup‑shaped blooms that appear continuously from spring through fall. Its cheerful blossoms draw small pollinators, making it a standout choice for hanging baskets, mixed containers, rock gardens, and bright indoor spaces. With its dynamic foliage and reliable performance in warm, humid conditions, Volcanic Sorrel offers spectacular texture and color with minimal maintenance.

Growing Volcanic Sorrel

Light: Partial sun to partial shade; foliage color is most vibrant in bright, indirect light, but it appreciates protection from harsh afternoon sun to prevent leaf scorch.

Soil: Light, well‑drained soil; highly adaptable but performs best in fertile, loamy potting mixtures that do not remain waterlogged.

Water: Moderate; water regularly to keep the soil evenly moist, allowing the top inch to dry out between waterings. Reduce watering slightly during the winter months.

Maintenance: No deadheading required. Pinching back the growing stems occasionally encourages a bushier, more compact shape and prevents the plant from becoming leggy.

Wildlife: Small flowers attract tiny beneficial pollinators; generally resistant to deer and rabbits.

Hardiness: Perennial in USDA zones 9–11; grown as an annual or overwintered indoors as a houseplant in cooler regions.

Shipping Info

Volcanic Sorrel plants are shipped as healthy young starts in 4" nursery pots. Allow 1–2 weeks after arrival for plants to recover from shipping and resume active growth before repotting or planting outdoors.