The daylily, a perennial favorite in gardens, will thrive when divided every three to five years.
The modest daylily is one of those summertime beauties that every decent garden must have in order to be complete. Daylilies add zing to the summer garden with their remarkable variety of color, height, and bloom season; it is no surprise they are one of America’s top perennials.
The daylily is typically the first plant people get started with in a perennial garden because of its simple growth requirements, which makes this group of plants perfect for the savvy gardener. Many homeowners might also be taking advantage of “pass-along plants” that have been placed along an old fence or foundation by an aunt or grandmother. In either case, early spring is an excellent time to rejuvenate most perennials, much as an apple tree benefits from trimming.
Daylilies have a tendency to grow into large clumps as your garden ages, and they might not be flowering as beautifully as they previously did. While some daylilies prefer not to be bothered at all, most daylilies benefit from being divided every three to five years. Keep a close check on the clump and assess whether or not it is functioning as well as it once did in order to determine when.
When the shovel is sharp
When they are divided, daylilies don’t care what time of year it is. The spring season is ideal since the plants are only emerging from hibernation at this time and are ready to expand, according to several daylily producers. As this is one perennial that gets a head start on foliage development, the earlier the better. The sooner you dig up the clump and divide it, the less probable it is that during the growing season you will see crushed or torn leaf.
Newly divided daylilies as seen in this garden will out-perform old clumps.
Don’t give up if you don’t get the chance to divide in the spring. Daylilies will benefit from rejuvenation and put on another “flush of growth” after they bloom (about mid-summer). You may simply trim the foliage to around 8 inches with a pair of hedge shears once the plant has finished blooming (this will range from mid-June until late August depending on the cultivar). It will be considerably simpler to see what you are dealing with as a result. Lift the entire clump from the ground by loosening the soil around it with a spading fork. The fork is superior because it won’t cut through the mushy roots.
Trim back foliage to about 6-8 inches and lift whole clump from the garden.
Depending on its original size, you can select to divide the clump into halves, thirds, or numerous parts. You should have at least four “fans of greenery” in the smallest division you create. It’s acceptable to increase your divisions if you so like. Since these will be the most developed, some people opt to throw away the plant’s center components.
Using a sharp spade or garden fork, separate into smaller pieces having at least four fans and re-plant at original depth.
The first year after division, tuck them into the garden with a good soak and keep the soil moist throughout the summer and into the fall. The plants will repay you with greater bloom and lush foliage if you give them the proper care, making you happy in the process.
What occurs if daylilies are not divided?
Early spring and late summer to early fall are the best periods to divide. You can postpone the division until the weather cools down if you do it at the end of the growing season, but don’t wait too long. The young plants should have enough time to establish themselves before winter.
Can daylilies be divided when they are in bloom?
The optimal period for division, in Roger’s opinion, is either early spring, as soon as new growth is seen above ground, or in the fall, after they have completed blooming. In their first year, divisions only produce a few flowers, but as they become established, they increase in beauty and flower production.
Loosen the clump
Score the ground all around a clump of daylilies with a sharp spade. (If dividing in the fall, as demonstrated above, first use pruning shears to remove the crowns of the wilted foliage.)
Dig up and remove rootball
When you dig up a daylily clump, make sure to acquire the largest root ball you can because the roots typically extend several inches beyond the boundaries of the leaves above them.
How can you ensure that daylilies bloom all summer long?
To promote more blossoms, frequently deadhead daylilies. Every day, remove any spent blooms. After all blooms have vanished, cut the blooming stem back to the ground. Using sharp scissors or pruners is the ideal technique to deadhead daylilies because of their thick stems, as doing so risks snapping off any nearby blossoms.
When can daylilies be split?
Your daylilies will remain content and uncrowded if you divide them for root division propagation. Generally speaking, daylily plants require division every three to five years. You must dig up the plants, separate them into portions, and then replant them to divide daylilies. Your daylilies can be divided into multiple plantings, given away, or stretched out.
When should daylilies be divided? The plants need a few years between divisions so they can grow new roots. Daylilies can be divided after two years in the ground, although it is better to do so every three to five years. Early spring, before the plants start to grow, or late fall, after the blooming season, are the ideal times to divide daylilies.
Daylilies are rather simple to divide. A sharp splitting tool or pair of scissors, as well as a shovel or spade, are required. Do the following to divide daylilies:
- Dig up the entire root system of your daylily plants.
- Shake or brush away the dirt from the roots gently.
- Sort the roots into at least two separate groups. Each group needs a good number of roots and at least three stems.
- Discard any broken or unhealthy roots after cutting the roots apart.
- Plant new daylilies. Set the crown at ground level and take advantage of the chance to add some new compost to your growing area.
That’s all, then! Your “new daylilies” should continue to flourish and add even more color to your garden than the original plants did.
How long do daylilies bloom for?
The easiest to maintain perennial flowering plant is the daylily. The plants have rapid growth and a long lifespan. They can grow in practically any type of soil, in full sun or partial shade, and are rarely bothered by disease or insect pests. Although daylilies are renowned for their hardiness, their vibrant and many blossoms are equally stunning. With new blossoms emerging every day, blooming begins in the middle of summer and lasts through the beginning of autumn.
Plan for Success
Sun and Shade: Daylilies grow best in broad sunlight. Even in partial shade, the plants can thrive, though they could yield fewer flowers.
Zones 4-9. Hardiness zones are where most daylilies can flourish. Uncertain of your growing zone? Look at this USDA zone map.
Daylilies should be planted bareroot in the early spring while they are still dormant. You can plant daylilies in pots at any point during the growth season.
How to Plant Daylilies
To a depth of twelve, loosen the ground. Compost and general-purpose granular fertilizer should be combined (if desired).
Place the daylily in the hole with its crown—where the roots and stem meet—one inch below the soil line.
Where to Plant Daylilies
Continual Gardens Daylilies give flower beds and borders color in the middle of summer. They flower at the same time as Shasta daisies, bee balm, and garden phlox, which are high summer bloomers. It’s simple to pick a height, bloom time, and color combination that work for your garden from the thousands of types available.
Nature Reserves Despite the fact that daylilies are not native to a region, their flowers and foliage complement ornamental grasses, asters, echinacea, rudbeckia, and other plants with an unstructured growth pattern and the strength to survive on their own.
Grassy Slopes Daylilies can be an attractive, low-maintenance option for sloped or otherwise challenging-to-mow lawn areas. Their extensive root network prevents soil erosion and can suffocate the majority of weeds. Daffodils are best paired with daylilies. In late April, the daylily foliage emerges and covers the dying back daffodil foliage.
Wet Regions Daylilies can withstand dry conditions as well as wet feet. They work well in rain gardens and are ideal for planting next to ponds or streams.
Building Blocks and Fence Lines The use of daylilies to create a low-maintenance border along a fence, by a walkway or driveway, or up against an outbuilding is highly recommended. They’ll ease the burden of pruning and mowing by softerening sharp lines.
Containers Daylilies do well in pots, especially some of the dwarf types. The luxuriant foliage serves as an excellent backdrop for other flowers even when they are not in bloom.
What to Expect
Daylilies don’t care much about the soil and can grow in conditions that would be too damp or dry for most other perennials. Having said that, good, well-drained soil is ideal for growing daylilies.
Daylilies need watering in dry weather throughout their initial growing season. They will establish themselves more swiftly as a result. Water sparingly but thoroughly, ensuring that the water reaches the root zone. Mulching will help keep the soil moist and lessen weed competition around newly planted daylilies.
Daylilies need a year or two to establish themselves and find their footing, like the majority of perennials. They will bloom consistently after that for many years.
How to Care for Daylilies
A daylily flower only blooms once. Snap off the spent blooms to maintain the plants looking their best, being careful not to disrupt neighboring buds. Cut the scapes down to the ground once they have finished blooming to maintain the plants’ clean appearance and stop them from investing energy in seed formation. Additionally, this might help the plant to grow more flower spikes.
Although certain species of daylilies maintain their green color far into the winter, the foliage often starts to turn yellow in late fall. Late fall or early spring are good times to remove spent leaves. Waiting until spring will make it simple to remove.
Daylilies benefit from an annual spring application of granular all-purpose fertilizer, depending on the soil’s fertility (follow package directions). When you remove the foliage from the previous year, scatter the fertilizer all around the base of the plant.
Daylilies benefit from having bark, leaves, or other organic materials mulched around them. It makes weed management simple and maintains soil moisture.
Daylilies can flourish for many years without any care, although dividing the plants around every five years will increase flower production. After the plants have stopped blooming in the late summer, this is a work to be done. The entire plant should be dug out and laid out on a tarp. To make the clump easier to handle, cut or pull it apart. Use scissors to cut the leaves back to 5 or 6 inches before transplanting.
How many daylilies can you plant in a single planting?
I had a variety of roles as a founding worker at Gardener’s Supply over the years. I currently run my own business, which is called Johnnie Brook Creative. A huge vegetable garden, a seasonal greenhouse, a cutting garden, perennial gardens, a rock garden, a shade garden, berry plantings, numerous container plants, and a meadow garden are among the gardens surrounding my Richmond, Vermont, home. The garden is the only place I would rather be. Check out this Garden Gate magazine video interview from January 2021 if you’re interested in learning more.
The daylily is the only perennial that can be considered a “guaranteed thing.” They do well in zones 3 to 9 (from Minnesota to Florida), can survive a wide range of soil types, are unaffected by diseases or pests, and consistently bloom for years with hardly any care. Hemerocallis, the daylily’s botanical name, literally translates to “beauty for a day,” and in fact, the majority of daylily flowers open in the morning and wither by dusk. The plant blooms for several weeks because each flower stem, also known as a scape, often bears at least a dozen flower buds.
Daylilies, unlike the majority of perennials, can be used in a variety of ways in the garden and landscape. The shorter, more compact kinds grow nicely when planted straight into perennial borders, where their blossoms provide the landscape a much-needed lift in the middle of summer. Daylilies are best planted in groups of three or five for landscapes, especially when combined with tiny shrubs and decorative grasses. Daylilies make the ideal plant for mass plantings along fences or walkways since they create a weed-free display that is thick and attractive.
When should daylilies be thinned?
One flower you can put in your garden without having to worry about it is the daylily. It doesn’t seem to matter how much water they get or the state of the soil; they manage to flourish and produce beautiful flowers. They will gradually fill the space you planted them in and spread out year after year; the only thing you might need to do from time to time is thin them out. This can be readily fixed by removing the mass of roots, separating the tubers, and replanting them in an area where they have lots of space to spread out.
Trim the daylily patch you want to thin out by cutting the green blades to six inches above the soil level in late summer or early fall, at or after the conclusion of the growing season. Since the grassy part of the lilies might tangle, this will make the task of trimming much simpler. Running your lawnmower over a particularly large section when it is on the highest setting will help you trim it. Rake up the trash, then add it to the compost pile.
- One flower you can put in your garden without having to worry about it is the daylily.
- Trim the daylily patch you want to thin out by cutting the green blades to six inches above the soil level in late summer or early fall, at or after the conclusion of the growing season.
With your weight pressing down on the fork’s heel, drive your fork as deeply as you can into the earth approximately six inches from the edge of the daylily patch. When the tines of the fork reach the surface, pull back and downward on the handle to push the soil up. You can observe how the tubers have grown collectively to produce a carpet of roots. Before you can remove the matted tubers out of the ground, you might need to dig around the cluster in a number of different areas.
Shake off the dirt, then carefully pull apart the roots holding the mat apart to separate the tubers. You might need to use a landscaping shovel to chop through the root mass surrounding large spots in order to remove them. One tuber should be set aside for every six square inches of space you intend to fill in smaller plantings. Place the remaining tubers in a pail so they can be donated or planted somewhere else.
- With your weight pressing down on the fork’s heel, drive your fork as deeply as you can into the earth approximately six inches from the edge of the daylily patch.
- Before you can remove the matted tubers out of the ground, you might need to dig around the cluster in a number of different areas.
With the leafy portion slightly above the soil level, replant the tubers. Now is the time to replenish the soil and reenergize the plants by adding extra composted earth. If you don’t keep them at least six inches apart, you’ll need to thin them again in two years rather than four or five. To ensure that the tubers have adequate soil contact, tamp the earth down over them.
Mulch the bed with a 3- to 4-inch layer to retain moisture and make the area look better.
The old growth will appear nicer if the mulch completely encases it. You will notice fresh green sprouts poking through the mulch in about a week. When the frost kills them, let them grow until they are just below the mulch, then clip them.
- With the leafy portion slightly above the soil level, replant the tubers.
- To ensure that the tubers have adequate soil contact, tamp the earth down over them.
You can give your gardening pals daylily tubers as presents. For a more natural appearance, plant daylilies around tree trunks.