Epiphytic Perennial: The variegated foliage has splotches & splatters of cream or off-white on the green leaves that resemble constellations at night. Large, heart-shaped leaves develop holes (fenestrations) as the plant ages, making the leaves look like Swiss cheese. USDA Z10-12. As a houseplant: Put in indirect, bright light. Provide support when it climbs. Water: once or twice a week. Avoid soggy soil, water when top 2-3 inches are dry. Toxic to humans and pets if ingested.