A mesmerizing hanging plant with delicate, vine-like tendrils and distinctive heart-shaped leaves, the string of hearts plant (Ceropegia woodii) will bring out a smile every time you look at it.

Picture a trailing ivy hanging off a shelf in your kitchen or a variegated houseplant that cascades over the side of a built-in bookcase. It may seem like a plant-lover's dream, adding a touch of ...