Each year, the American Hemerocallis Society (AHS) bestows the following honors:
- Silver Stout Medal (SSM). The AHS’s highest award for a daylily is this one. It is given to the best exceptional daylily.
- Award of Merit, or AM. Awarded to daylilies for their exceptional beauty and performance across a large portion of the nation.
- Honorable Mention, or HM. the initial official endorsement of AHS.
- Junior Citation, abbr. a prize given to the top fresh seedling.
- Don Fischer Memorial Cup, abbreviated DFM. the top tiny daylilies receive recognition.
- Award for Annie T. Giles, or AGA. Awarded to the best daylilies with tiny flowers.
- Richard C. Peck Award a prize given to the top tetraploids.
- Edmund S. Foster Award given to the top cultivars of late bloomers.
- L. Ernest Plouf Award, or LPA. given to the most fragrant and dormant variety.
- Don C Stevens Award given to the cultivar with the finest eyes.
- LAA stands for Lenington All-American Award. Awarded to the nation’s top performance throughout all regions.
- Popularity survey by AHS a yearly survey to find out which daylilies are most popular with AHS members around the nation.
What do the abbreviation codes used in your catalog stand for?
- Late May through early June, VE = Very Early Bloom
- Early blossomer This indicates that the daylily blooms in June in Michigan.
- Early Midseason (EM) Early July: Bloom
- M = July Midseason Bloom
- Late July, ML = Late Midseason Bloom
- L = August Late Bloom
- Mid- to late-August VL = Very Late Bloom
- Bloom typically repeats itself
- Extended bloom (EXT) means the blooms are open for at least 16 hours.
- Buds that are NOC (nocturnal) open in the late afternoon and remain open all or part of the following day.
- Fragrant, or FR
- D: Dormant refers to the kind of vegetation. To learn more, click on the following link: Daylily Leaf
- Semi-Evergreen foliage (SE)
- Evergreen = EV refers to the kind of vegetation. To learn more, click on the following link: Daylily Leaf
- DIP = Diploe
- Tetraploid. TET
What is a Daylily?
A daylily is a perennial plant with long, narrow, strappy leaves and flowers that only bloom for one day (hence the common name Daylily).
Hemerocallis is the name of the plant. Although even The New York Times frequently gets this wrong, daylily is one word, not two. In most of the United States, these exceptional plants are now the perennials with the highest sales and popularity.
A daylily’s confluence of roots and foliage is called its crown. Fans of greenery protrude from the crown’s center. A daylily clump can have 10 to 30 individual fans after three years, the majority of which will develop a bloom scape.
The flower stalk protrudes from the center of the fan as the foliage reaches maturity in midsummer. Each scape has between 10 and 40 or more buds, resulting in a three to four week bloom phase. There are certain daylilies that bloom repeatedly and some that bloom all summer long, but these are the exceptions.
Daylilies have a unique root structure. They are not corms, bulbs, or tubers. Instead, they have roots that are fleshy, fibrous, and come in various diameters. Those that are bigger could be as thick as your finger! These roots hold the water and nutrients that the plants need for energy storage.
In order to create new cultivars of daylilies, the majority of the effort has been done in the US. Over the past 50 years, significant improvements in daylily quality and diversity have been made.
What are the different types of daylily foliage and why is foliage type important?
Daylily experts and hybridizers often divide daylily foliage into three groups:
Deciduous signifies dormant. When the fall frost strikes, dormant daylilies entirely lose their foliage. Then, depending on the cultivar and growing region, they remain leafless or without leaves for a while. Day length and temperature changes may have an impact on dormancy.
As the day duration shortens in the fall, photoperiod-sensitive dormants produce yellowish foliage and start a progressive die-back before frost. Temperature-sensitive dormants stay green up until the onset of freezing temperatures, at which point they cease growing and begin to wither. The fans of the following year’s daylilies overwinter as buds or buttons of new leaf on the crown below the soil line. The new growth arises from these buds once it receives the signal from Mother Nature that it is time to resume growth. On dormant daylilies, the new foliage that emerges in the spring is usually quite lovely, appearing quite healthy and green.
Evergreen is a synonym for continuously growing or having foliage. Evergreen daylilies thrive all year in warm regions without below-freezing temperatures in the winter. In colder, northern locations, evergreen daylilies want to grow continually, but cold temperatures prevent this from happening. Evergreen daylilies practically stop growing in the winter in really cold areas. Evergreen daylilies may continue to push up new leaves on mild days in transitional climatic zones where the soil is not consistently frozen throughout the winter.
Evergreen foliage dieback is progressive in northern gardens as the temperature drops. Evergreens do not lose their foliage at a specific time like dormants do. On an evergreen fan, each leaf makes an effort to continue growing. Typically, only the very tips of the leaf initially exhibit damage from frost. Dieback deeper down the leaves is a result of freeze damage. Even in the middle of winter, evergreen daylilies frequently have green leaves visible several inches above the plant crown unless they are pruned to the soil line. When an evergreen has been frozen, the foliage is frequently mushy and takes a long time to dry out and decompose, unlike the spent foliage on dormant daylilies. In the spring, it wouldn’t be a bad idea to take this out on your own.
A semi-evergreen daylily, by definition, behaves like a dormant plant in the north and like an evergreen plant in moderate, frost-free areas. Theoretically, semi-evergreen gardens thrive in both southern and northern climates. The classification of semi-evergreens may really be much more complicated in practice.
Daylilies that are semi-evergreen have fall foliage that regenerates more slowly than dormant varieties. Usually, even after being exposed to extremely cold temperatures, a few 2 to 4 inch tall green shoots are still discernible. The tips of semi-evergreens’ old leaves may get mushy from repeated freezes, but unlike evergreens, their main body totally withers away. In comparison to dormant species, semi-evergreens frequently reappear in the spring more quickly.
- In the north, dormant daylilies are typically completely winter-hardy.
- To properly survive northern winters, evergreen daylilies often need mulching or other particular winter protection. In the north, they are typically unsuitable for open-field farming without winter protection.
- Daylilies that are semi-evergreen fall halfway between dormant and evergreen varieties.
When will daylilies turn green again?
Daylilies (Hemerocallis), which are robust and versatile, are a feature of the summer garden. Plants continue to produce fresh flowers for up to four to five weeks even though individual blossoms come and go every day. Daylilies typically bloom from late June through July. However, numerous reblooming types are now available that bloom again in the late summer, significantly extending the growing season.
Today, daylilies come in thousands of different types and in every imaginable size, shape, and color. And the majority flower profusely. Multiple flowers can grow on a single stem. A mature plant can also produce hundreds of flowers in a single summer month.
However, maintenance-free does not always imply something is simple to grow. Daylilies can quickly amass a sizable number of wasted, wet flowers if left unattended. These decrepit blooms are not only ugly, but they also hinder blooming. This is why.
Are there any perennial daylilies?
The term “daylily” (Hemerocallis) comes from the fact that each flower only blooms for one day. The plants make up for this by producing flowers for a length of time that can last several weeks. They do this by having a succession of numerous lovely blooms. Even in frigid climates where the green foliage overwinters as a frozen green mound that springs back to life, many of the hundreds of different types of daylilies are considered evergreen, with foliage that lasts through the winter.
How are daylilies kept healthy?
Insufficient Water Amount. Once they are established, daylilies are easy to maintain, but young plants require frequent hydration to develop strong root systems that support development. Too little water may be the issue if newly planted daylilies start to grow yellow leaves that eventually turn brown.
Daylilies should be pruned back for the winter.
Cut back daylilies’ leaves and stems to prevent them from becoming disorganized or worn-out over time.
When daylily leaves start to die and become brown, it is the optimum time to think about removing some of the foliage.
This typically occurs in the late fall through early winter. Following are some things to think about:
- Waiting until all of the leaves have fallen off the plant following the first harsh cold is OK.
- You can alter the height you cut them at depending on how they develop. Dwarf or mini daylilies, for instance, can be reduced in size.
- You can easily separate the pieces if you want to propagate them, trim the leaves back to about six or seven inches, and then replant them once the summer’s heat has passed.
Do white daylilies exist?
White daylily with a big scent. Large and prominently white, with an especially dense structure and density with a pale green throat. on our fields in the August garden draws attention.
How can I ensure that my daylilies bloom all summer long?
The ever-blooming Stella D’Oro daylily is shown here. Basically, this perennial’s show of golden, yellow flowers will start in May and continue up until a strong winter. You will get more blooms if you deadhead them (take the old flower stalks off at the base) as opposed to if you let them grow into seed pods that will mature over the summer and burst in the fall.
Although it is not required, doing it will improve your performance. And let’s face it: floral power is crucial in a perennial garden!
Evergreen Stella d’Oro daylily:
This evergreen variety of the famous Stella de Oro Daylily blooms early and returns to bloom. Above a dense clump of grassy green leaves, fragrant golden-yellow trumpet flowers emerge.
In Zone 8, are daylilies evergreen?
Daylilies are a favorite among gardeners, and it is simple to see why. Other flowers could be equally lovely, but no other plant is as hardy, adaptable, or versatile. Daylilies are stunning and hardy, making them ideal plants for both the aficionado and the weekend gardener. Daylilies, which are native to Asia, have adapted to our harsh and diverse conditions with the same tenacity as our greatest native flora. They can be found in all parts of the United States, but they do best in USDA Hardiness Zones 4 through 9.
For three to four weeks, a nice daylily variety will consistently bloom. Daylilies can bloom for the entire perennial season, which can last from three months in the North to ten months in the South, if you choose the right types.
Although it is a remarkable performance, daylilies are capable of considerably more. Their growth is dense enough to suffocate the majority of weeds. On steep slopes and other erosion-prone areas, they are excellent at keeping the soil in place. They can resist the sweltering heat of our summers, scorching sunlight, and drought better than other garden flowers.
Because of this, many areas of the nation have the traditional Hemerocallis fulva growing along roadside ditches and stream banks. As soon as farmsteads are abandoned, it is one of the few garden plants that may thrive.
The modern daylily was developed in America and has a wide range of flower shapes and hues. There were just a few types of daylilies when A. B. Stout began breeding them at the New York Botanical Garden about 100 years ago, and they were all extremely similar to the roughly 12 natural species being produced at the time. Stout crossed wild varieties, and the daylily boom we are currently experiencing is a result of his success. In the United States, around 40,000 cultivars have been named since 1900; 13,000 of them are still available for purchase.
There are numerous categories in which daylilies might be placed. In cold climates, deciduous types become dormant, evergreens can withstand frost and continue to thrive all winter, and a third category known as semi-evergreens exists in between. As a general rule, stay away from evergreens north of zone 7 and deciduous daylilies south of zone 8. It’s sound advice, however there are a few exceptions to the rule in each of the groups.
The majority of daylilies have 18 to 24 inch tall, arched leaves. Some species have foliage that is upright. Some are only 12 inches tall, while others are 3 feet tall. The leaf color can be anything from light to dark green with a bluish tint.
The height stated in nursery descriptions and on plant labels refers to the length of the flower stalk, or “scape,” rather than the leaves. Although most retain their flowers just above the foliage, there is no relationship between plant height and scape length. The shorter types’ flower scapes can reach heights of up to 12 inches. The tallest have scapes that are over 6 feet high.
Six petals make up a single daylily. The second set of petals in double types are frequently ruffled. The “miniature” types of flowers range in size from 1 1/2 inches to 8 or 9 inches across. Daylilies now come in every shade imaginable, with the exception of blue and completely white. Many flowers have two or three colors. Tetraploid daylilies are a common type of modern daylily. When compared to the typical “diploid” types, they have twice as many chromosomes. These robust kinds typically have longer stalks, blooms, and leaves.
The largest selection of daylilies can be found in mail-order flower growers’ catalogs. The majority of variations cost between $3 and $10, but some can go for hundreds of dollars. Keep in mind that expensive guarantees only uniqueness, not quality.
Choosing from the tens of thousands of different kinds might be overwhelming for the average gardener. Here is some basic guidance: Consider the entire plant. Common sense dictates that not all daylilies with yellow blooms will grow in the same way if there are 4,000 of them. Some of those yellow plants grow noticeably more quickly, bear more flowers, and have prettier leaves than others.
There are hints as to how plants will grow in your yard if you take a close look at them in a nursery or showcase garden.
On a sunny day, late in the afternoon is the perfect time to go daylily shopping since you can see how the flowers hold up to the sun. Red and pale plants are more vulnerable to solar damage. You may also see how they will appear after work, when most people are able to relax in the garden.
Never accept cultivars that bloom for less than three weeks. Count the number of buds on the flower stalk if this information isn’t on the tag. A successful plant will contain at least 15 buds on each stem. Of course, daylily flowers only open for one day each, and on average, one blooms every other day. To determine the total for that variety, simply count the scars left by broken buds.
Daylily flowers don’t open as readily in the morning where the evenings are quite cool. You can do this by becoming more “nocturnal.” These plant species have flowers that bloom at sunset and last all day the next day.
Throughout the whole growing season, daylilies continue to produce more and more flower stalks. “Stella d’Oro” is the most well known. A variety’s repeatability is typically indicated on the label. The plant is a repeat bloomer, but, if you notice a new scape emerging at the base of a flowering plant.
Daylily leaves are much more likely to remain in your yard than the flowers are, and not all daylilies have particularly lovely foliage. Dark green to blue-green kinds with beautifully arched leaves are the most lovely. When purchasing, make sure the greenery generously covers the pot.
When the plants have exotic blooms, daylilies can grow slowly. A excellent landscaping variety will grow by at least three times annually. Stronger ones, like “Stella d’Oro,” perform even better. If you have a large area to fill, you can divide and replant rapid growers more regularly because they have a lot of blossom power.
The greatest flower kinds have a two-day fading period during which they roll up like miniature cigarettes and die. This is a characteristic that is simple to see in the nursery and is not present in all kinds. Some people keep withered flowers in their hands for days, or worse, they drop them upon other buds, disfiguring newly opened blooms.
Daylilies are mainstays of perpetual borders, but they also stand out in other places. Strong daylilies provide ground covers that are weed- and erosion-proof. Place them near waterways, on banks, and at the sides of roadways. Use dwarf daylilies as flower bed edges, in pots, or in rock gardens.
Plant drifts of a single variety of daylily when using multiple varieties. From spring to fall, a haphazard mixture nearly always appears uneven. The foliage of different cultivars varies greatly. The flower stems’ height and blooming period are also important. You’ll obtain a more natural look and a larger impact during showtime if you cluster at least three of one variety together.
The recommended amount of daily sun exposure for daylilies is six hours or more. However, they benefit from some afternoon shade and irrigation during bloom in hot and dry areas. Additionally, many of the darker and milder reds retain their color better in partial shade. Daylilies will still thrive in any zone with half a day of shade; however, they won’t bloom as aggressively.
Daylilies thrive in a variety of soil types. Daylilies can be planted effectively nearly whenever the ground can be worked. When the shoots first appear in the spring or right after bloom, is the best time to transplant and divide. Plant in the early spring (February or March) or the fall in zones 9 and 10; avoid planting in the middle of the summer. In the Southeast, avoid planting during the height of summer due to the risk of new plants rotting due to the high temperatures and humidity. When planting in the fall in cold climates, transfer the plants at least a month before the first hard frost to give the new roots time to establish themselves and prevent frost heave.
Leave 18 to 24 inches between plants. Plant at the same height (the white at the base of the leaf) as the previous plants, or a little higher to allow for settling. then water, firm the ground.
While some cultivars can live for 20 years without needing to be divided, others could need to be divided every second or third season. When you detect a decline in bloom production, it’s time.
Numerous daylily types function admirably in all five hardiness zones. However, a kind that is unmistakably better in Georgia might be simply mediocre in San Diego. It makes sense to purchase daylilies from local growers or mail-order growers in your hardiness zone. Contact the American Hemerocallis Society for details on daylily nurseries (Pat Mercer, AHS Executive Secretary, Box 10, Dexter, Georgia 31019). It accepts new members and will provide a free membership information packet that contains information about its 15 regional clubs, 133 member display gardens, and a source list with 118 nurseries, many of which have daylilies for sale. The quarterly Daylily Journal is included in the $18 yearly membership fee.
At more than 30 locations around the country, the All-American Daylily Selection Council has tested over 6,000 different cultivars. The top ten are those that are listed below. Each one expands by 60 to 100% every year, grows well in at least five adjacent hardiness zones, and has lovely, spreading foliage. All flower for at least two months. The difference between the lengths of blooming (“Days in bloom”) reflects the fact that flowering is mostly concentrated in the North and dispersed in the South.