Divide the plants every two to three years through separation of the root system to prevent overcrowding and improve plant growth. Watch Reply. When you dig and divide daylilies, you break an overgrown clump into smaller plants, which rejuvenates them by reducing competition for sun, water, and nutrients. In this post I'll show you how to divide and transplant daylilies so that you have a jaw dropping garden that boosts your curb appeal on a dime. So keep reading for some tips on how to divide daylilies. Generally, daylilies should be divided about six weeks before the first frost. In zone 7 or colder, you will need to protect your potted daylilies over the winter. The daylily is one of the easiest perennials to divide. Divide daylily plants in the spring season before the temperatures become too hot. Dividing daylilies is relatively easy task to accomplish. We test soil temperatures in the spring and wait to divide until soil temperatures reach 55° F, at which point daylilies begin vigorous growth. Dividing in fall in the north should be scheduled to allow 6 - 8 weeks for the daylily to settle in before the ground freezes for winter. Best Time For Daylilies: Best done in the Spring and early Fall to give the plants a few weeks to adjust before the weather becomes extremely hot or cold. Plant daylilies in well-draining soil in a location that receives a minimum of six hours of sun a day. Mark unread; Skip to new; Mark unread Print Skip to new. Divide daylilies to obtain more plants for your own garden or to share. In the North, we usually begin dividing daylilies in May and continue through August. When to divide daylilies . Once you have clump free, brush or rinse the dirt from the roots so you can see them. For gardeners new to transplanting and dividing plants, the daylily is a most forgiving specimen for learning these techniques. When To Plant Daylilies In Zone 6. Once you have clump free, brush or rinse the dirt from the roots so you can see them. "Daylilies are bulletproof—they can take a lot of abuse," says Roger Cook, This Old House landscape contractor. But before you get started, consider your climate: daylilies should go into the ground with enough time before first frost to establish a strong root system, 4-6 weeks before the first hard frost. My daylilies are very tall and still quite green even after 2 hard freezes. When to divide DayLilies. Take the opportunity to put some fresh potting mix and compost in the container, then tease apart the daylily root fans. Daylilies have the added characteristic of growing ever-expanding clumps each year, giving the gardener more plants to populate the landscape or share with friends and family. Kept well-watered and modestly nourished, and with the seed ponds promptly picked off, these container daylilies should continue blooming throughout the summer. When To Plant Daylilies In Zone 6. If you divide them when clumps start to get crowded or their blooms are shy, usually after four or five years, you will be rewarded with more plants and flowers for another part of your garden or for the garden of a friend. However, if you transplant and divide your daylilies in the … Divide container-grown daylilies every two to three years, in the early spring before blooming begins. Physically separate the roots, being sure to leave three fans of leaves per clump and a decent set of roots. I think the best time to divide daylilies, in my area of Upstate New York (zone 5-4), is anytime after August 15. Water the daylilies every 3 days when the weather is dry. More. When to Divide Daylilies. 2019 intros www foreverdaylilygardens easy rewarding daylilies to grow dengarden how to grow daylily a carefree perennial gardener s path daylily hemerocallis southern living daylily hemerocallis southern living how to grow daylily a carefree perennial gardener s path. Daylilies are the gifts that keep on giving!