Nepthytis is a hardy houseplant that brings a bit of greenery to your interior decor without requiring too much maintenance. Arrowhead vines are true climbers in the wild, much like a similar plant, philodendron. Nephthytis eventually grows in length from its shady home to full sun in the tropical tree canopy, with leaves maturing and gaining size as the plants gain altitude. As a houseplant, they're often used as trailing plants and can be trained up a pole or moss stick for added visual interest. Alternately, you can pinch new growth to maintain the young plant's upright stems. If you think you have a black or brown thumb, try nephthytis, which can absorb some neglect.