Divide and Multiply

Dividing is a quick way to multiply your collection of perennials, succulents, and some suckering shrubs. Dividing yields two or more plants from one, and it is healthier for the original plant than being left to overcrowd itself.

The best time to divide most plants is from late fall to early spring. Avoid especially cold or wet periods as these make it tough for the divided plants to reestablish. Plants with fleshy roots, such as irises, peonies, and poppies, have a better chance of rooting if divided in late summer.

Begin by gently digging around the base of the plant to expose the perimeters of it. Then carefully lift the plant with a garden fork. Shake or brush off as much soil as possible so you can see what you are doing. Often with older plants, there will be a dead spot of brown stems in the center of the plant. Cut this out and divide the remaining growth. The simplest way to divide most plants is to grasp large sections by hand and gently, but firmly, pull them apart. Plants that can't be pulled apart can be cut through with a sharp spade. Make sure you leave a few buds on each division.

You can dust any cuts with a fungicide to curb infection. Cut back the tops and place the new plants in the ground at the same height they were growing before, and water.