Plant in well-drained soil enriched with organic matter to ensure optimal growth. Choose a location with partial shade to protect from harsh sunlight, which can scorch the leaves. Water regularly, keeping the soil consistently moist but not waterlogged, especially during dry spells. Deadhead spent blooms to encourage prolonged flowering and maintain a tidy appearance. In early spring, apply a balanced, slow-release fertilizer to promote healthy growth and vibrant blooms.