Species

1 other cultivar

‘aurea’Golden Oxalis Yellow Wood Sorrel

perennial

Volcanic Sorrel

Oxalis spiralis 'vulcanicola'

The Story

Plant Bio

Oxalis spiralis 'vulcanicola' is a perennial that produces clover-like foliage and charming yellow flowers.

This cultivar is noted for its vibrant display and tolerance to a variety of soil types.

Uses & Benefits:

Oxalis spiralis vulcanicola's unique spiral foliage adds a striking visual element to shaded garden beds and containers.

Its low-maintenance nature makes it an excellent choice for beginner gardeners seeking groundcover options.

Provides nectar for pollinators and supports local insect biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

6 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Moderate

Humidity

Average

Lifespan

Tender Perennial

Native To

Central America

Toxicity

Toxic to pets if ingested in large amounts

Bloom period

Mid-spring – Late spring

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings lightly once roots develop, around 4 weeks.
Water regularly but do not overwater to prevent rot.
Fertilize monthly with balanced liquid fertilizer during active growth.
Prune dead or damaged leaves to encourage new growth.
Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Use a well-draining sandy soil mix for optimal growth and prevent root rot.

Keep It Thriving

Care Guide

Do

Ensure bright, indirect sunlight for healthy foliage 🌱
Water consistently to keep soil moist but not soggy
Apply balanced fertilizer monthly during the growing season
Mulch to conserve moisture and regulate soil temperature

Don't

Avoid overwatering to prevent root rot ❌
Do not expose to harsh, direct afternoon sun in hot climates
Refrain from using heavy, clay soils that retain water
Avoid neglecting pest inspection during active months

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pinch
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged groundcover for shaded areasContainer plant with vibrant foliage accentsBorder plant for rock gardens

Companion Plants

Sedum Sempervivum EcheveriaThyme Lavender

Multiply

Propagation Methods

Good to Know

Common Questions

Volcanic Sorrel questions

What zones can Volcanic Sorrel grow in?

Volcanic Sorrel is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Volcanic Sorrel deer resistant?

Yes — Volcanic Sorrel is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Volcanic Sorrel bloom?

Volcanic Sorrel typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Volcanic Sorrel need full sun?

Volcanic Sorrel does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Volcanic Sorrel drought tolerant?

Yes — once established (usually after the first full season), Volcanic Sorrel handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.