Compact, durable, heat and drought resistant, long lasting flowers, resists powdery mildew. Also known as ‘black eyed Susan’ or ‘Gloriosa daisy’. These hybrids are used as annuals and closely related to the biennial black eyed Susan prairie plant, Rudbeckia hirta. Rudbeckia hirta hybrids may seem to perennialize for a few years but will eventually die out. They may also self-seed but will revert back to their prairie plant parentage and look quite different.