Botanical name: Pleiospilos sp.
Common name: Split Rock
Family: Aizoaceae
Origin: Southern Africa
Drought-tolerant; suitable for xeriscaping.
Like all living rocks, they thrive in porous soils with excellent drainage. The plants require little or no water when they are dormant.
Link to this plant:
https://toptropicals.com/catalog/uid/pleiospilos_sp.htm