This species of Gasteria has its strap-shaped leaves in two opposite rows (distichous), and is very variable in its appearance, and especially in its size. Its flowers are 25–45 mm long, with only slightly swollen bases for up to one-third of the length. In its vegetative appearance, it looks very similar to its two closest relatives, Gasteria disticha and Gasteria brachyphylla to the south, which are also distichous. However the flowers are different, with G. disticha having smaller flowers of just 12–20 mm which have flower bases that are inflated or swollen for roughly two-thirds of the flower length. It is proliferous, offsetting from underground stolons, and can form large clumps. It has pink flowers which appear in mid-summer around December. The seeds develop in time to be dispersed during the rains of autumn and winter.