History

Blue Plumbago was first introduced to Europe in the 17th century and has since become a popular ornamental plant worldwide. Its name “Plumbago” is derived from the Latin word plumbum, meaning lead, due to its historical use in lead-based paints.

Common Names

Blue Plumbago
Butterfly Bush
Cape Plumbago
Leadwort

Plant Characteristics

Height: Up to 6 feet tall
Width: Up to 10 feet wide
Leaves: Dark green, leathery, and lance-shaped
Flowers: Vibrant blue, phlox-like blooms that attract butterflies
Bloom Time: Spring to fall
Sun Exposure: Full sun to partial shade
Soil Type: Well-draining soil, slightly acidic to neutral
Soil pH: 6.0 to 7.5
Hardiness Zones: 9-11 (USDA)

Planting Guide

When to Plant: Plant in spring or fall when temperatures are mild.
Where to Plant: Choose a spot with full sun to partial shade and well-draining soil.
How to Plant: Dig a hole twice the width of the root ball and plant the shrub at the same depth it was in the container. Space plants 3 feet apart to allow for growth.
Mulching: Add a layer of mulch around the base to retain moisture and suppress weeds.

Care Instructions

Watering: Water regularly, especially during the first year to establish roots. Once established, water moderately, allowing the soil to dry out between waterings.
Feeding: Fertilize three times a year with a balanced fertilizer (e.g., 10-10-10). Supplement with bone meal or liquid fertilizer to promote blooming.
Pruning: Prune in late winter or early spring to shape the plant and remove dead or damaged branches. Avoid using hedge trimmers; hand pruning is best.
Propagation: Easily propagated by seeds or cuttings. Divide the plant every 3-4 years to maintain vigor.

Pests and Diseases

Blue Plumbago is generally pest and disease-resistant. However, watch out for slugs and snails, and ensure good air circulation to prevent fungal diseases.

Uses

Landscaping: Ideal for garden beds, borders, and containers.
Cut Flowers: Excellent cut flowers that attract hummingbirds.
Deer and Rabbit Resistant: Many varieties are resistant to deer and rabbits.

Toxicity

All parts of Blue Plumbago are toxic if ingested. Keep it away from children and pets.

Fun Facts

Symbolism: In South Africa, Blue Plumbago is a symbol of pride and is used in traditional medicine.
Hybrids: Many hybrids and cultivars have been developed, offering a variety of colors and sizes.