Haworthia (ha-WORTH-ee-a): One of the best succulents for indoor use, Haworthia are exotic slow growing plants with low light and water requirements. Some have firm, tough leaves, while others have softer leaves that contain "leaf windows" with translucent panels. Most are shades of green, but all have interesting textures, features, and shapes. Some will even show shades of red or orange when stressed or given sun. A great place to start if you're new to succulents!