About Sinningia speciosa (G.Lodd. ex Ker Gawl.) Hiern
Sinningia speciosa (G.Lodd. ex Ker Gawl.) Hiern, a tuberous flowering plant in the family Gesneriaceae, is native to Brazil. It is often called gloxinia in the horticultural trade. When it was first described in 1817, it was classified under the genus Gloxinia, before being later reclassified into the genus Sinningia. Showy hybrids of S. speciosa are still sometimes called just "gloxinia", though this name is technically incorrect today. The name florist's gloxinia is now sometimes used to distinguish this species from the rhizomatous species that are currently included in the genus Gloxinia. Another common name for this plant is Brazilian gloxinia. S. speciosa produces large, velvety, brightly colored flowers, and is a popular houseplant. Its cultivation requirements are similar to those of African violets, except that S. speciosa generally needs more light and often goes through a dormant period. During this dormant period, the tuber should be kept cool and dry until it starts sprouting again. While S. speciosa is generally grown indoors, it is hardy in USDA hardiness zones 10 through 12.
