'Fireworks' is a clump-forming, half-hardy, evergreen perennial with strap-shaped, dark green leaves, and, in summer, sturdy, erect stems bearing rounded umbels of trumpet-shaped, white flowers, purple at the base. Grow in fertile, moist but well-drained soil in full sun. Suitable for growing in a container, especially in areas with cold, wet winters. Apply a deep winter mulch in cold areas. Avoid excessive winter wet.