Chinese houses or Collinsia heterophylla, is a flowering plant native to California and the Peninsular Ranges in northern Baja California. Chinese Houses are a half hardy or hardy annual that reaches 30 to 60 cm in height. It blooms in the middle of summer, with flowers of pink, blue or purple. The flowers are often lip shaped, hence one of their common names ? Bluelips. Other names include Innocence, Blue-eyed Mary, and Chinese Houses. It is a great plant to grow in borders even in containers. Seeds should be planted outside in their final location either before the last frost of spring or in the autumn. . Innocence should be grown in a sunny garden or a partially shaded one in hot areas. Zones 3 to 10.