Gasterias are another desert succulent which can be used in a dry terrarium. They have paired, smooth leaves which gives them a unique appearance and can be planted in combination with other succulents for a dramatic effect, particularly when planted among rocks. Like most desert plants Gasteria needs bright lighting, and a free draining soil but this species will tolerate some shade. Although drought tolerant they prefer to be watered as the soil dries out, but before they are completely dry. Unless the terrarium is set up with a deep, bio-active substrate then plants is a dry terrarium are best kept in their pot, which is then disguised with substrate and decor. This allows the plants to be watered as necessary without making the whole substrate too damp.