Found wild in China, 'Zixin' was named for the excellent deep purple-red variegation following the veins in the otherwise green leaves. In use as a groundcover plant in China, this will spread to form low mats of excellent small foliage, interspersed with bright yellow flowers with deep purple throats in summer. Sun or semi-shade. Little is known yet about ultimate hardiness, but has formed a good carpet here so far.