Perennial: Large, heart-shaped leaves develop holes (fenestrations) as the plant ages making the leaves resemble Swiss cheese. Can be grown as a houseplant. Allow to let climb, hang or trail. Provide support if you want it to climb. Blooms: spring (does not bloom indoors). Bloom color: white. Fast growing with a vining habit. Ht: 10-13' outdoors, 3-8' indoors. Width: 1-3'. Exposure: part shade, avoid direct sun. Water: moist, well-draining soil. USDA Z10.