Yellow HammerYellow Hammer has flowers described as Empire Yellow, which form multiple bud clusters for trusses, and narrow 1" elliptic green leaves. This lovely hybrid rhododendron is hardy to 0F when protected from windchill and can grow 6' tall at maturity. We recommend placing Yellow Hammer in full sun to partial shade. Anticipate blooms as early as March. It has a somewhat naturally leggy growth habit, and brings unique character to gardens and landscapes.