Unlike many other succulents, Aeoniums are winter growers. They thrive in the cool, winter rainfall regions and are dormant in the hot, dry summer months.
How do I know if my succulent is dormant?
Another way to tell if your succulent is dead or just need some extra rest is to check its roots. Even though the plant might look dead, the roots are healthy. You can remove your succulents from the pot to see if their roots look shriveled, dry or mushy. If they're not, your succulents are likely to be in dormancy.
What is the dormant season for succulents?
Most cacti and succulents go dormant by the time fall comes around, meaning they will stop growing when temperatures and daylight drop.