Plumbago Auriculata
Plumbago auriculata Lam.
Plumbago auriculata is a sprawling evergreen shrub with clusters of sky-blue phlox-like flowers that bloom profusely from spring through fall. Native to South Africa, it is drought-tolerant and attracts butterflies while adding cool blue tones to warm-climate gardens.
Plumbaginaceae (Leadwort family)
Spring through fall; year-round in frost-free zones 9b-11
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Similar flowers: blue sage flowers and nolanas also share similar meanings.
Cultural Significance
In South Africa, plumbago is called "blousyselbos" in Afrikaans and has been used traditionally by indigenous peoples. The name "leadwort" comes from ancient Roman belief that it could cure lead poisoning, though this is not scientifically validated. The cool blue flowers are relatively rare in nature, making plumbago prized for adding tranquil blue tones to warm-climate gardens. It is a larval host plant for the common blue butterfly (Cacyreus marshalli), connecting it to South African biodiversity. The Award of Garden Merit from the Royal Horticultural Society recognizes its exceptional garden value.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun to partial shade; full sun for best flowering
Water
Low to moderate; highly drought-tolerant once established; avoid waterlogging
Soil
Well-drained, Sandy, Loamy, Fertile, Slightly acidic to alkaline (pH 6.1-7.5)
Expert Growing Tips
Prune hard in late winter to encourage new growth and more blooms
Flowers bloom on new wood
Can be trained to grow as vine, shrub, or standard
Extremely drought-tolerant; ideal for xeriscaping
Propagates easily from cuttings or suckers
Uses & Benefits
Ornamental Uses
- Shrub borders and hedges
- Container or patio plant
- Trained as vine on trellis or espalier
- Groundcover (sprawling habit)
- Butterfly and pollinator gardens
Traditional Uses
- Root contains plumbagin, a compound being studied for anticancer properties
- Historically believed to cure lead poisoning (hence name "leadwort")
- Traditional use in South African medicine
- Contains compounds with antibacterial properties
- Caution: plant sap can cause contact dermatitis; wear gloves when handling
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Plumbago Auriculata
Is plumbago auriculata deer resistant?
Yes, plumbago auriculata is generally deer resistant. Deer typically avoid it due to its somewhat bitter foliage and the irritating sap that can cause skin reactions.
Can plumbago auriculata cause skin irritation?
Yes, plumbago can cause contact dermatitis in some people. The plant produces plumbagin, a compound that can irritate skin. Always wear gloves when pruning or handling the plant.
How do you train plumbago as a vine?
Plumbago has weak, scrambling stems that can be tied to a trellis or support structure. Prune regularly to encourage branching, and tie new growth to supports as it develops for a vine-like appearance.
Why is plumbago called leadwort?
The name "leadwort" comes from ancient Roman naturalist Pliny the Elder, who thought the bluish color resembled lead. The plant was historically believed to cure lead poisoning, though this is not medically valid.
Available Colors
Quick Facts
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