Growth Rate
Fast: Butterfly Bushes are fast-growing plants. They can grow 2 to 4 feet per year under optimal conditions.
Size
Mature Height: Typically, Butterfly Bushes reach a height of 6 to 12 feet.
Mature Spread: They have a spread of 4 to 15 feet, depending on the variety and growing conditions.
Growing Conditions
Sunlight: Prefers full sun for best flowering and growth.
Soil: Adaptable to a variety of soil types but thrives in well-drained soil. Tolerates poor soil conditions.
Watering: Requires moderate watering. Drought-tolerant once established but benefits from regular watering during dry periods.
Hardiness Zones: Suitable for USDA hardiness zones 5-9