Setup, Compatibility & Care
When planting, choose a site that offers full sun to partial shade; while it thrives in sun, partial shade can help the flowers last longer during particularly hot summers. If planting in the ground, ensure the soil is rich, moist, and well-draining. For container gardening, use a high-quality loam-based compost to provide necessary nutrients.
Consistent moisture is the primary requirement for this shrub; do not allow the soil to dry out completely. Apply a balanced, slow-release fertilizer in the spring as growth begins, and provide a light liquid feed during the early summer to fuel the production of the large flower heads. Pruning is best performed in late winter or early spring when the plant is dormant, focusing on removing old, woody stems to encourage new, vigorous growth for the coming season.