She and Jentz agree that iris plants need to be divided every three to five years. "The best time is during the late summer or early fall," says Jentz. "When you plant the new divisions, be sure the ...

We may receive a commission on purchases made from links. In much of the U.S., soil stays warmer than the air into November. So, many perennials can keep growing roots without the stress of summer ...

Fill your garden with a succession of colorful blooms with our complete guide to planting spring, summer, and fall-flowering bulbs.

Dividing isn't just a spring gardening task—certain perennials benefit from being divided before the frost hits. Here are seven perennials you should divide in October.

Looking for simple fall tasks that will pay off next spring and summer? Enjoy this cooler weather! Divide many perennials like daylilies, irises, monkey grass & ajuga while the weather is still warm ...

If you want your irises (Iridaceae spp.) to put on a real show next spring, don't reach for the clippers too soon. It's easy to get impatient when the flower stalks start to flop in midsummer, but ...