Huernia Thuretii Var Primulina Cactus Cacti Succulent Live Plant in a 4" Pot. Huernia thuretii var Primulina is an adorable variety of Huernia thuretii, from the Apocynaceae family. A native of South Africa, this winter-dormant succulent grows up to 5 cm in height. The growth rate of Huernia thuretii primulina is slow. The flowers are a special attraction in these succulents. Beautiful yellow-colored blooms appear during the spring season. This plant needs sufficient water, but excess watering should be avoided as it will damage the roots. Huernia primulina needs well-drained soil to grow. To grow healthy plants, mix 50 percent pumice or perlite, 25 percent peat or organic mulch, and 25 percent sand. The hardiness of this succulent is 10a to 11, with a frost tolerance that is below 40F (4.4C). The plant needs full sunlight and shade to thrive. Proper sunlight will help the plant germinate quickly. Huernia thuretii primulina is easy to propagate through seeds, offsets, and stem cuttings. Huernia primulina is the most beautiful flowering plant. It will make your house look appealing. Buy without thinking twice.