It is recommended to divide perennials at the opposite season of their flowering. In the fall you divide the summer flowering perennials. In spring, they are perennials with autumn flowering.
Fall, perennials that bloom in the summer
Spring, perennials that bloom in the fall
TRUE OR FALSE: If I divide my perennial, it will die.
False: On the contrary! If your plant becomes too dense and is producing fewer blooms, it will fare better once it is divided.
Should I fertilize when I divide my perennials?
Yes, it is very important to fertilize when dividing perennials.
Add natural fertilizer Plant Starter with Bone Meal to the planting hole to make the plant more resistant to the shock of being transplanted. The bone meal will stimulate root development for faster recovery.