A rhubarb plant has begun to flower. - Tomas Vynikal/Getty Images Picking your own rhubarb (Rheum rhabarbarum) for jams, jellies, and pies is one of the best parts of a perennial spring garden.

Dividing plants is a clever gardening technique that involves separating a plant in half to create a new plant for free. Most perennials benefit from division every two to three years to maintain ...