Pretty Betsy Jupiter’s beard (Centranthus ruber 'Pretty Betsy') is a perennial with pink to coral-red flowers. The selection prefers sandy, well-drained alkaline soil in full sun or part shade; it is native to Europe, where the White Cliffs of Dover turn red when it blooms there in spring. Pretty Betsy also does well in the U.S., particularly in areas that have cool summer climates. It grows to3 feet tall and 2 feet wide and flowers from June to August. The Latin ruber in its botanical name translates as "red." In ideal conditions, the plant self-seeds profusely and can become invasive. Cutting the flowers immediately after they appear will prevent them from forming seeds and prolong flowering.