Experts and BHG readers answer.
How to separate and re-plant sedum
Rosy Glow sedum is a groundcover type sedum that will naturally sprawl and spread. You can divide and replant it almost any time. It reestablishes quickly, and even will root from broken stems without roots placed in soil.
If you prefer an upright growing sedum you may want to choose a different variety, such as Autumn Joy, Neon, or Blade Runner.