No other plant looks like a String of Pearls that has its leaves grow into small round marbles. The String of Pearls is a vigorous grower that quickly covers the surface of its container and then will develop stems that hang over the sides of their pot. The plant only grows a few inches tall, but the trailing stems can extend over 24 inches long or more. Older string of pearls that get a cool resting period in the Winter sometimes produce small white flowers which carry a faint cinnamon scent.