This Peperomia Pepperspot is also known as a String of Coins. It is a slow-growing perennial succulent that is native to the rainforests of Brazil.
Bright light can help your String of Coins to grow, but if the leaves turn a dark green it is getting too much light.
This species of peperomia loves humid weather which can be tricky to replicate a home. You can mist the leaves or place the plant in a gravel tray with water to create some artificial humidity in your own home.