How do I go about dividing perennials in spring?
Early spring is an excellent time to divide asters, mums, hostas, daylilies, garden phlox, and many other perennials. Dig up the perennials in early spring just as new growth begins to appear. Divide each plant clump into sections with a sharp knife. Each division should contain several shoots and a portion of the root system. Replant the divisions immediately. Keep the newly divided perennials well watered through spring and summer. Most newly divided perennials do not bloom well until their second growing season.