One of the best-kept secrets of successful gardeners is the art of dividing perennials. Not only does this simple practice rejuvenate older plants and keep them healthy, but it also gives you free plants to spread around your garden—or share with friends. Over time, many perennials can become overcrowded, which leads to fewer flowers and weaker growth. By splitting them at the right intervals, you’ll encourage more vibrant blooms and extend the beauty of your garden for years to come.
Below are 11 easy-to-divide perennials that will multiply your blooms and make your garden thrive.
1. Hostas (Every 3–5 years)
Hostas are beloved for their lush foliage and shade tolerance. After several years, clumps can become crowded. Splitting them not only promotes healthier growth but also allows you to fill shady corners of your yard with ease.
Tip: Divide in early spring or fall when the soil is moist.
2. Phlox (Every 2–4 years)
Phlox produces colorful, fragrant blooms that attract butterflies and pollinators. Over time, the center of the plant may die back, signaling that it’s time to divide.
Tip: Replant divisions in well-drained soil for the best results.
3. Peonies (After 8–10 years)
Peonies are long-lived perennials that rarely need dividing. However, after 8–10 years, you can dig them up and separate their root clumps to multiply your stock.
Tip: Plant divided roots in the fall, and don’t bury them too deeply.
4. Coneflowers (Every 3–4 years)
Coneflowers (echinacea) are hardy perennials known for their daisy-like blooms and medicinal properties. They’re easy to divide, ensuring more vibrant patches of color.
Tip: Divide in early spring just as new growth appears.
5. Daylilies (Every 3–5 years)
Daylilies spread quickly and can overcrowd themselves. Splitting them keeps their blooms abundant and helps manage their spread.
Tip: Use a sharp spade to dig up and separate clumps in late summer.
6. Black-Eyed Susans (Every 3–4 years)
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