Medinilla myriantha Plant in a Pint pot. Medinilla myriantha is commonly referred to as Malaysian Orchid or Malaysian Grapes. Medinilla myriantha is an epiphyte in nature, so it needs a porous potting soil. The flowers start light pink and darken to purple. The blooms of Medinilla myriantha last for months. This shrub grows to about 45 inches high. This is an easy plant to grow in the shade or as a house plant. This plant is attractive to bees, butterflies and birds. The berries are not edible. USDA Hardiness Zones 11a to 11b That is above 4.5C or 40F.