Butterfly Bush Plant Care

Butterfly Bush (Buddleja davidii) belongs to the Scrophulariaceae family within the Buddleja genus. Butterfly Bush is native to most of China except for the far northeast. Butterfly Bush is also known as Summer Lilac.

Butterfly Bush displays a fast-growing shrub growth habit, reaching up to 6 inches tall with a spread of approximately 4 inches. Butterfly Bush produces showy clusters of fragrant flowers in various colors.

Leaf size: approximately 6 inches.

Buddleja davidii requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Butterfly Bush thrives in full sun to partial shade light conditions. The optimal light range is 2000–5000 lux. Avoid placing Butterfly Bush in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Buddleja davidii grows best at temperatures between 50°F and 80°F. Butterfly Bush prefers humidity levels of 40–70%.

Well-draining sandy loam with added organic matter. Good drainage is essential for Butterfly Bush to prevent waterlogging, which leads to root rot and fungal issues.

Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Butterfly Bush can be propagated through softwood cuttings, hardwood cuttings.

Butterfly Bush is susceptible to aphids, spider mites, caterpillars. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Butterfly Bush grows outdoors in USDA Zone 12a. Native to most of China except for the far northeast, Butterfly Bush is adapted to warm climates. In cooler regions, grow Butterfly Bush as a houseplant or bring it indoors before the first frost.