In late winter, the bare branches of Prunus mume put forth breathtaking masses of blossoms on bare branches, often while the garden is still covered with snow. Taoists believe one who contemplates this sight can experience the essence of spiritual harmony. Prunus mume, called "plum blossom," is one of the most important species in Chinese gardens and represents renewal and strength of will. Branches forced to bloom indoors symbolize friendship. Although planted here on a trial basis, the species is not reliably hardy in the St. Louis climate. Several similar species have been planted in the Grigg garden as well.