Butterfly Bush

Scientific Name: Buddleja davidii

Plant Family: Scrophulariaceae

Native Region: Central China; naturalized across much of North America and Europe.

Butterfly Bush

Brief Description

A vigorous deciduous shrub known for its arching branches, lance-shaped leaves with felt-like gray-green undersides, and long, cone-shaped clusters of fragrant flowers.

Care Instructions

Low maintenance once established. Plant in full sun and well-drained soil. Prune hard in late winter or early spring to encourage vigorous new growth and more blooms. Avoid over-fertilizing as it can lead to more leaf growth than floral growth.

Medicinal Value

We do not currently provide medicinal value for plant identifications.

Sunlight

Full sun, requiring at least 6 to 8 hours of direct light per day for optimal flowering.

Watering

Moderate watering when first planted; once established, it is relatively drought-tolerant. Water weekly during very dry spells.

Soil

Well-drained soil is essential to prevent root rot. Prefers a neutral to slightly alkaline pH (6.0-7.5).

Hardiness Zone

5 through 9; can die back to the ground in colder climates and regrow in spring.

Growth Habit

Deciduous perennial shrub. Fast-growing, reaching 6-12 feet in height and 4-15 feet in spread depending on the cultivar.

Bloom Season

Mid-summer through autumn. Features dense panicles of purple, pink, white, or blue tiny tubular flowers with a honey-like scent.

Toxicity

Generally considered non-toxic to humans, dogs, and cats, but not intended for consumption.

Propagation

Easily propagated through softwood cuttings in summer or semi-ripe cuttings in autumn.

Common Pests & Issues

Relatively pest-resistant but can be susceptible to spider mites in hot, dry weather. Root rot occurs in poorly drained soils.

Similar Species

Lilac (Syringa), which blooms earlier in spring and has smoother leaves; and Vitex agnus-castus, which has palmately compound leaves.

Interesting Facts

Commonly called 'Butterfly Bush' because its nectar is highly attractive to butterflies. Despite its popularity, it is considered an invasive species in several US states due to its prolific seed production.

Created At: 2026-06-23T19:11:29.628367