If you have an established perennial bed, digging and dividing perennials is a great way to add more plants to your garden, save money, and, most importantly, keep your plants healthy and thriving.  

While perennials come back year after year, they can become less vigorous and produce smaller blooms after a few years in the garden. Some may develop a bald spot in the center of their crown or become leggy and need staking to keep stems from falling over. All these are signs that your plants are ready to be divided.

Click the button below for a chart from the UI Extension Kootenai County Idaho Master Gardeners on what perennial flowers should be divided, how often, and tips for preparing them for winter.