Plant Trippy Pink(R) butterfly bush (Buddleia davidii 'Trippy Pink(R)') where you want bold, upright hot pink flower spikes and steady pollinator activity through the warm months. This deciduous shrub forms a rounded to upright plant that typically matures about 72-96 inches tall and 72-96 inches wide, with blooms produced on new growth for reliable summer color.
Give it full sun for the best flowering, strongest stems, and richest color. Provide moist, well-drained soil at planting, then let the soil dry slightly between waterings once established. Good drainage is important, especially going into winter, and the plant will adapt to a range of soil textures when water does not sit around the roots.
Prune hard in early spring before new growth begins; this helps control size and encourages vigorous new shoots that carry the season's flowers. Deadhead spent blooms if you want a tidier look and extended flowering. In colder parts of its range, it may die back and regrow from the base in spring, but it can still flower well on that fresh growth.
Use it as a focal shrub, in mixed borders, or as a sunny backdrop for perennials. The fragrant flowers are a strong nectar source that draws butterflies, and the long, upright flower spikes make an excellent accent in the landscape when you want high-impact color.