STRING OF HEARTS Foliage: Heart-shaped leaves, often variegated with shades of green, silver, pink, or purple, arranged along thin, string-like vines. Vines: Long and trailing, capable of reaching lengths of up to 12 feet when mature. Flowers: Small, tubular, and typically pink or purple. They bloom primarily in the summer and fall. Tubers: Small, bead-like aerial tubers, sometimes called bulbils, can form on the stems and are used for propagation. Water once a week during summer and every two weeks for winter. Easy to propagate!