This is the fastest method of propagating Aeonium Simsii succulents. Aeonium Simsii can be propagated by using offsets of the parent plant. It is best to remove any unhealthy or diseased parts and repot the plant in well-drained soil. They thrive best in bright light, both indoors or outside, and when protected from frost. This plant is drought-tolerant but cannot withstand frost so it must be protected from extreme cold. These plants need to be protected from direct sunlight as they are not frost-tolerant. 3.