Plumbago (Cape Leadwort)

Plant Specifications

• Plant Name Plumbago (Plumbago auriculata)
• Mature Height 24 – 36 in
• Mature Width 24 – 36 in
• Spacing 3 – 4 ft apart
• Sunlight Full sun (tolerates light shade)
• Temperature Tolerance 30 – 95 °F
• Watering Needs Moderate; consistent moisture during bloom
• Growth Rate Fast
• Difficulty Level Easy
• Grows Well Indoors No — prefers outdoor light
• Flowering Time Late spring through fall
• Origin South Africa

Plant Description

Plumbago is a gentle cascade of sky-blue blossoms that turns any patio into a seaside escape. Its relaxed growth and dreamy color palette create an effortless, breezy charm that pairs well with warm stone or terracotta pots. Even when not in bloom, the delicate green leaves form a soft, trailing texture that’s easy on the eyes. This plant embodies relaxed coastal elegance, bringing calm energy to sunny corners.

How to Grow

Give plumbago at least six hours of direct sun daily for best bloom. Plant in a fertile, well-draining mix and water whenever the top inch feels dry. In humid climates, air circulation prevents mildew; in drier areas, regular watering keeps flowers continuous. Pinch back shoots if you prefer a compact form.

Care Tips

Fertilize lightly every six weeks during the growing season to encourage steady blooms. Remove spent flowers to stimulate new clusters and trim after each bloom flush. Protect from frost and wind to maintain leaf health.

Uses

A natural choice for container gardens, walls, and balcony boxes where its trailing habit can shine. Loved for attracting butterflies and softening architectural edges with color.

Planting Tips

Add a handful of compost to the mix for nutrient support. Ensure good drainage and avoid leaving pots in standing water. Cut back lightly after planting to promote branching.

Maintenance

Rejuvenate annually by pruning one-third of the plant after the main bloom period. Feed regularly in warm months and repot every two years to refresh the soil.