Plant Identifier
Cape Leadwort

Cape Leadwort

Plumbago auriculata

Family: PlumbaginaceaeNative: South AfricaIdentified: Sep 17, 2026

A scrambling, evergreen shrub featuring light blue, phlox-like flowers grouped in terminal clusters and bright green, oblong leaves.

Light
Full sun to partial shade, requiring at least 6 hours of direct sunlight daily for optimal flowering.
Water
Moderate watering needs. Allow the top few centimeters of soil to dry out between waterings. Drought-tolerant once established.
Growth
A sprawling evergreen shrub or climber that can reach 3 to 10 feet in height and spread up to 6 to 10 feet if supported.
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Care instructions

Grow in full sun to partial shade with well-draining soil. Water regularly during the growing season, allowing the soil to dry slightly between waterings, and reduce watering in winter. Feed with a balanced, slow-release fertilizer in spring.

Growing details

Sunlight

Full sun to partial shade, requiring at least 6 hours of direct sunlight daily for optimal flowering.

Watering

Moderate watering needs. Allow the top few centimeters of soil to dry out between waterings. Drought-tolerant once established.

Soil

Well-draining sandy or loamy soils with a neutral to slightly acidic pH range of 6.0 to 7.0.

Hardiness zone

USDA zones 9 to 11. Can be grown as an annual or container plant in cooler climates.

Growth habit

A sprawling evergreen shrub or climber that can reach 3 to 10 feet in height and spread up to 6 to 10 feet if supported.

Bloom season

Blooms continuously from late spring through autumn, producing delicate sky-blue or royal-blue tubular flowers arranged in phlox-like clusters.

Propagation

Propagated easily through semi-hardwood cuttings taken in spring or summer, or by division of established root clumps.

Common pests & issues

Generally trouble-free, but may occasionally attract aphids, spider mites, or mealybugs. Overwatering can lead to root rot.

Similar species

Plumbago indica, which features reddish-pink flowers instead of blue.