110 Categorized Perennial Flowers That Will Bloom For Years

Gardeners Worst Nightmares: 28 Perennials You’ll Regret Planting

110 Categorized Perennial Flowers That Will Bloom For Years

Perennial plants are a good investment.  Plant once and have flowers that bloom for years.  However, some plants that seem innocent enough literally take over the garden and quickly spiral control.  Others bloom for such a short time that they don’t seem worth the trouble.  Here’s a list of 28 perennials I’d rather not see in my next garden.

Disclaimer: This post contains plants that are problematic in USDA hardiness zones 2 and 3.  Some of these plants may not be problematic in your area.  If you have difficult growing conditions, you’ll want to put these plants on your next shopping list.  

Source: https://www.shiftingroots.com/perennials-youll-regret-planting/

Heat Tolerant Plants that Resist the Sun and Heat

110 Categorized Perennial Flowers That Will Bloom For Years

Even in the peak of summer, there’s no reason your garden can’t be as colorful, vibrant, and lush as your springtime landscape.

In fact, you can keep your garden blooming all season long by adding these stunning, heat-loving plants to your beds, borders, and containers as soon as the mercury starts rising.

While most are perennials in mild climates, they can be planted as annuals to replace springtime varieties that struggle in the heat.

  1. Lantana
  2. As a native to the tropics, lantana s it hot and humid, and grows best in moist, well-draining soil (but can withstand drought conditions).

    It thrives in the sun, especially afternoon sun, and blooms year-round in tight clusters of red, orange, yellow, pink, or white.

    The flowers are ideal for planting along the perimeters of vegetable gardens, as they’re irresistible to bees, butterflies, and hummingbirds. Place them near crops that need to be pollinated, such as squash and melons.

  3. Lemon Verbena
  4. This hardy, sun-loving herb hails from South America but is now grown around the world. It’s said that in summer, Victorian women used to find relief from the sweltering heat by packing lemon verbena leaves in their handkerchiefs and inhaling the sweet, citrusy aroma.

    Nowadays, you can simply plant lemon verbena near your doors and windows for a whiff of the pleasing scent.

    It needs only weekly watering with the Gilmour Flexogen Super Duty Hose and a watering nozzle once established, and puts out pretty white flowers in late summer to early fall.

  5. Cosmos
  6. These tall, showy annuals with silky, daisy- flowers are native to Mexico, able to take the heat and the drought—thus making them ideal for desert gardens or areas with poor soil. In fact, soil that is too rich will make them weak-stemmed and floppy, so plant them in beds you’ve long neglected if you want to inject a lot of color in your space with little to no maintenance.

  7. Marigold
  8. Marigolds appear on almost every list of ideal warm-weather flowers, and for good reason: they’re classic (especially as container plants and bedding plants), easy to grow, come in cheerful tones of orange and yellow, and bloom in summer and fall when many other plants are griping about the heat. Plant them in well-draining soil in full sun, and water well at the root zone, allowing the soil to dry a bit between watering.

  9. Geranium
  10. Geraniums have always been known to tolerate heat better than most plant species, but the recent development of hybrid geraniums has meant varieties that can take on tough climates Texas and Arizona, where 100-plus-degree summers are the norm.

    To keep them healthy, however, they need consistent moisture and should be watered with a Thumb Control Watering Nozzle when the first 2 inches of soil are dry.

    They’re also happier in the long run if given dappled afternoon shade in the height of summer.

  11. Salvia
  12. Salvias (also known as sages) are long-blooming, deer-resistant, easy to grow, and easy to care for.

    Being native to the Mediterranean, salvias are heat-tolerant, prefer full sun, and thrive with minimal summer watering, making them ideal for dry gardens and drought-friendly landscapes.

    The most striking salvias have masses of showy blue or purple flowers that bloom all summer long and attract a variety of pollinators.

  13. Sedum
  14. Sedums (stonecrops) are a group of succulents that are as low-maintenance as they come. Resistant to drought, heat, humidity, and poor soil, sedums survive in less-than-ideal conditions by storing moisture in their thick, succulent leaves.

    These qualities make them excellent choices for arid climates and rock gardens that still want a bright infusion of color when the dense clusters of flowers appear in summer.

    Sedums don’t having wet feet, so make sure to put them in well-draining soil in full sun.

Source: https://gilmour.com/heat-tolerant-plants

Canary Creeper Nasturtium Seeds (Tropaeolum peregrinum)

110 Categorized Perennial Flowers That Will Bloom For Years

Single Packet of 110 Seeds

Grow the fascinating Canary Creeper Nasturtium, from freshly harvested Tropaeolum peregrinum climber seeds. Canary Creeper is a trailing variety of Nasturtium that establishes long vines, measuring anywhere between 8 and 12 feet in length. They are best grown near a fence or trellis for support.

They can also be used to populate railings & pillars on balconies and porches as well. Their bright & cheery yellow petals resemble that of a canary birds wings, hence it's common name, the Canary Creeper. Though it is a Nasturtium flowering plant, you might notice that the leaves are not similar in shape to other varieties of Tropaeolum.

Despite this visual difference they are still just as attractive and tasty.

Categorized as a perennial flowering vine, Canary Creeper Nasturtiums will grow quickly from seeds, and will establish a deep root system in the first year of growth. The plants then wilt on the surface, due to the low temperatures of winter, reestablishing it's foliage the following Spring.

The blooms may not become visible until the second year of growth. Seeds can drop to the bare ground beneath, promoting new plant life the following spring. The seeds can also be collected from the dried flower heads at the end of the season, to sow in other areas of the garden.

 The beautiful, bright yellow flowers will attract all sorts of beneficial insects to the garden. These insects include butterflies, bumblebees, honeybees & hummingbirds. Many gardeners sow these seeds to establish a butterfly garden, since they can be grown with other wildflowers.

However, be aware that their vigorous growth can sometimes take over smaller plants nearby.

other flowering Nasturtium, the flowers, seeds, leaves and even the stems, of your Canary Creeper plants are edible. Use early seeds as a substitute for capers, or add the leaves and flowers to salads. These delicious plants are enjoyed through the summer months, with their peppery flavors. Nasturtium flowers are also used in butters, soups and gumbo's as well.

Quick Facts

  • Type: Flower / Vine
  • Color: Yellow
  • Height: 8″ to 12″ Long
  • Width: 8' to 12' Spread
  • Season: Perennial
  • Zones: 7 to 10
  • Environment: Full Sun

Sowing The Seed

Nasturtium seeds have a tough outer shell, which can be scarified to improve germination. Nick the seeds with a knife, or sandpaper and soak them in warm water overnight. Once this has been done, you can sow the seeds either indoors, or directly outdoors.

If started indoors, sow the seeds in peat pots, 6 to 8 weeks prior to the last forst. Peat pots will help prevent root shock when transplanted. Sow the seeds at a depth of 1/2” under topsoil.

Transplant entire pots, or direct sow outdoors when the weather has warmed and all danger of frost has passed.

Growing Conditions

Nasturtium will thrive in areas of full sunlight, with temperatures of at least 65F or higher. They require poor soils, which will promote more blooms. The sowing medium should be well drained as well. To increase your drainage, we recommend that you add a light compost to any areas containing hard, compact soil. Water the seeds daily until germination has successfully occurred.

Germination & Growth

Nasturtium seeds typically take anywhere between 7 and 10 days to germinate. The plants will grow to a mature length of 8 to 12 feet long and can be spaced about 18 to 24 inches apart from one another.

 The 2 to 3 inch, bright yellow blooms will attract an array of beneficial insects to the garden, such as bumblebees, honeybees, butterflies & hummingbirds as well.

The leaves, seeds, stems & flowers are all edible from Nasturtium plants.

Source: https://www.myseedneeds.com/products/canary-creeper-nasturtium

9 things to know about the corpse flower

110 Categorized Perennial Flowers That Will Bloom For Years

DENVER – We know. You can't stop hearing about this amazing corpse flower at the Denver Botanic Garden. It's supposed to bloom any day now.

But before it opens and starts to stink up Denver, we thought you'd to learn a little bit about the flower so you can impress your friends when you talk about it.

But how big is this corpse flower typically?

The corpse flower's inflorescence (otherwise known as a cluster of flowers arranged on a stem) can reach more than 10 feet in height. The leaf grows on a somewhat green stalk that branches into three sections at the top, each containing many leaflets. The leaf structure can reach up to 20 feet tall and 16 feet across.

Each year, the old leaf dies and a new one grows in its place. When the corm (otherwise known as a plant stem) has stored enough energy, it becomes dormant for about four months. Then, the process repeats. The corm typically weighs around 110 pounds.

The heaviest corm ever recorded was in 2006 in the Botanical Garden of Bonn, Germany where it weighed 258 pounds.

Where does this funky flower come from?

The corpse flower is endemic to western Sumatra where it grows in rainforests on limestone hills. For those who didn't memorize the globe during their geography class, Sumatra is an island in southeast Asia in western Indonesia.

It's near Borneo and New Guinea. Sumatra has a wide range of plant and animal species but has lost almost half of its tropical rainforest in the last 35 years. Many scientists blame Singapore and Malaysia for their pollution.

It's also part of the same flower family as the calla lily.

How rare is this whole blooming process?

In cultivation, the corpse flower generally requires between seven and 10 years of vegetative growth before blooming for the first time. After its initial blooming, there can be considerable variation in blooming frequency.

Some plants may not bloom again for another seven to 10 years while others may bloom every two to three years. There have also been documented cases of back-to-back blooms occurring within a year. The bloom typically opens between mid-afternoon and late evening and remains open all night.

Most corpse flowers begin to wilt within 12 hours, but some have been known to remain open for 24 to 48 hours.

Why on earth does it smell so awful?

The fragrance of the corpse flower resembles rotting meat, which attracts carrion-eating beetles and flesh flies that pollinate the flower. The red color and texture contribute to the illusion that the corpse flower is a piece of meat.

The stench has been described as spoiled eggs, a soiled diaper, rotting fish, dirty laundry or even day-old roadkill – for those who disturbingly know what that smells .

If the idea of that smell scares you, remember, you can just tune into 9NEWS' web cam of the flower here: http://on9news.tv/1L69PpL.

The corpse flower's scientific name is hilarious

The scientific name is Amorphophallus Titanum—which translates to “misshapen giant penis.” Nick Snakenburg, the curator for Tropical Plants at the Denver Botanic Gardens, says the scientific name was generated during a time when people named plants after body parts.

(Read more about this totally accurate name here: http://on9news.tv/1PvXCto).

Funny story, naturalist Sir David Attenborough for his BBC series The Private Life of Plants felt constantly referring to the plant as Amorphophalius on a popular TV documentary would be inappropriate so he came up with another option: “titan arum.”

How does this stinky flower get pollinated?

During its bloom, the tip of the spandix (other which known as a type of spike inflorescence having small flowers borne on a fleshy stem) is approximately human body temperature, which helps the perfume volatilize.

This heat is also believed to assist in the illusion that attracts carcass-eating insects. Female flowers are usually receptive to pollination overnight since that is when the bloom is open.

As the corpse flower wilts, the female flower loses its receptivity to pollination.

Both male and female flowers grow similarly, but the female flowers open first. Then, a day or two later, the male flowers open. This usually prevents the flower from self-pollinating.

Self-pollination is normally considered impossible, but in 1999, Huntington Botanical Garden botanists hand-pollinated their plant with its own pollen from ground-up male flowers.

The procedure was successful, resulting in fruit and 10 fertile seeds from which several seedlings eventually were produced.

The who's who of corpse flowers

Corpse flowers are pretty rare in the world of Botanic Gardens. Kew Gardens in London has two of them. The Franklin Park Zoo in Boston, Mass. has one named Morticia. The Royal Botanic Gardens in Melbourne, Victoria, Australia has a corpse flower that last bloomed in December 2012. The Huntington Library in San Marino, Calif.

also has a corpse flower. There's one named Putrella at the Muttart Conservatory in Edmonton, Canada. And obviously, there is one at the Denver Botanic Garden, hence the purpose of this listicle. There are about 100 recorded cultivated corpse flowers around the world.

The first recorded flowering in the United States was at the New York Botanical Gardens in 1937.

How endangered are corpse flowers?

The corpse flower is considered “vulnerable” when it comes to its conservation status.

A vulnerable species is considered as such because it's ly to become endangered unless the circumstances threatening its survival and reproduction improve.

Vulnerability is mainly caused by habitat loss or destruction. There are currently 4,914 plants classified as vulnerable, compared to 2,815 in 1998.

What feeds this monster?

Yes, it weighs a lot and rarely blooms, but the corpse flower is pretty typical when it comes to nourishment. The corpse flower simply feeds on soil, air and water.

Read or Share this story: https://on.11alive.com/1NBswiE

Source: https://www.usatoday.com/story/news/nation-now/2015/08/17/corpse-flower-fun-facts/31869023/

Ten amazing new plant and fungi discoveries in 2019 – in pictures

110 Categorized Perennial Flowers That Will Bloom For Years

  • A snowdrop discovered from a holiday photo uploaded to A new snowdrop,Galanthus bursanus, from north-west Turkey was discovered on when a Turkish paediatrician uploaded her holiday photos. They were spotted by a Ukrainian snowdrop specialist who could see from the picture that they were something specialPhotograph: D Zubov/RBG Kew
  • Sweet, not sour: A new species of ‘miracle-berry’Synsepalum chimanimani, a new species of ‘miracle berry’ has been discovered in the lowland rainforests of the Chimanimani Mountains on the Mozambique-Zimbabwe border. The miracle berry is a small tree, just four metres in height, with glossy evergreen leaves produced in small bunches. The twigs produce a white rubbery latex when cutPhotograph: Bart Wursten/RBG Kew
  • Doomed by a hydroelectric dam? New ‘orchid’ discovered in a waterfallInversodicraea koukoutamba was discovered on a waterfall on the Bafing River in Guinea, west Africa. It has not been found anywhere else. The new species, identified to be in the family known as the ‘orchids of the falls’ is a rubbery seaweed shrub that grows to 20cm tall. Kew scientists expect it to become extinct when construction on a planned hydroelectric project in the area begins in 2020Photograph: RBG Kew
  • A bamboo-dwelling medicinal fungus found in China A medicinal fungus known in China for more than 400 years has been fouond to be a genus as well as a species previously unknown to science. It has now been formally namedRubroshiraia bambusae. The new genus is native to Yunnan in south-west China where it grows on a species of bamboo, forming pink ball- fruiting bodies. The fungus is used as traditional medicine in the area to treat arthritis and infantile convulsions. However, scientific interest has increased because of the discovery of compounds in the fungus known as hypocrellinsPhotograph: Cici Dong-Qin Dai/RBG Kew
  • Ten new species of bears’ breeches found in tropical Africa Ten new bears’ breeches were found this year in tropical Africa by Kew scientists. Particularly noteworthy are two blue-flowered flower species oaleria found in Angola:Barleria deserticola andBarleria namba. B deserticola, from the Namib coastal desert, was first collected 160 years ago by the explorer Friedrich Welwitsch, but was only re-found in 2017, finally allowing this species to be named this year by Kew.B. namba only came to light very recently, having been discovered on the previously unexplored Mount NambaPhotograph: Erin Tripp/RBG Kew
  • A bright pink, candy cane-striped violet from New Guinea A spectacular new species from the African violet family,Cyrtandra vittata, was discovered this year in northern New Guinea. The striking, bright pink candy cane-striped flower grows on a shrub in the rainforest and its white berries are thought to be dispersed by doves and pigeons. The African violet was collected from the wild under permit. Once propagated from cuttings it was discovered to be a new species when it flowered in cultivationPhotograph: Lynsey Wilson/RBG Kew
  • Eleven new trees and shrubs found in the Andean forests Eleven new species of trees and shrubs have been discovered in the Andean forests in South America this year. All 11 are in the plant genusFreziera. These new trees could have many uses. Some of the genus are known to produce compounds that could be of medicinal or biochemical value. Other species have also been proposed as conservatory plants because of their attractive glossy, variously sculptured leavesPhotograph: JG Graham/RBG Kew
  • Endangered by a volcanoCostularia cadetii, a perennial herb, grows on the rims of the volcanoes in Réunion, an island in the Indian Ocean east of Madagascar. The first record of it was collected in 1965 but further material was needed and it was only officially named this year. The herb was named after its collector, Thérésian Cadet, a former teacher and climbing enthusiast. The species is classified as endangered as it is restricted to this high-elevation habitat, which puts it at risk from volcanic activity, fire and climate changePhotograph: J Bruhl/RBG Kew
  • A botanists’ love letter: Kew scientist named orange flower after his wife Found growing on a table-stone mountain in Kounounkan in Guinea is theGladiolus mariae.The Kew scientist Xander van der Burgt found the vivid orange flower to be restricted to two mountains in the area – the mountains are among the last to remain unaffected by humans. It s to grow in fire-free habitats and occurs in open vegetation with little grass. Xander decided to name the flower after his wife, MariaPhotograph: Xander van der Burgt/RBG Kew
  • A rare find: the zonozono tree With just seven trees known on the planet, zonozono, a 20-metre tree in the ylang ylang family, is perhaps the rarest species discovered this year. It has been identified in a genus previously known only in west Africa and not suspected to be present in the Usambara Mountains of Tanzania in the east of the continent. It is assessed as endangered because of the low number of individuals and threats from pole-cutting and an invasive tree speciesPhotograph: Andrew R Marshall/RBG Kew

“,”author”:”Royal Botanic Gardens, Kew”,”date_published”:”2019-12-17T06:01:41.000Z”,”lead_image_url”:”https://i.guim.co.uk/img/media/fa6a3b07ddca8579b7db7b513ad65ac5da0ce9/0_458_4000_2400/master/4000.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctZGVmYXVsdC5wbmc&s=a8442988b8a9c03707c013a05f4a0e0c”,”dek”:null,”next_page_url”:null,”url”:”https://www.theguardian.com/environment/gallery/2019/dec/17/amazing-new-plants-fungi-discoveries-2019-royal-botanic-gardens-kew-in-pictures”,”domain”:”www.theguardian.com”,”excerpt”:”The Royal Botanic Gardens, Kew has chosen its top 10 species discovered in 2019, celebrating the diversity of plants and fungi”,”word_count”:53,”direction”:”ltr”,”total_pages”:1,”rendered_pages”:1}

Source: https://www.theguardian.com/environment/gallery/2019/dec/17/amazing-new-plants-fungi-discoveries-2019-royal-botanic-gardens-kew-in-pictures

All-American Daylilies

110 Categorized Perennial Flowers That Will Bloom For Years

Gardeners can't get enough of daylilies, and it's easy to understand why. Other flowers may be as beautiful, but no other plants are as rugged, widely adapted, or versatile.

Daylilies are gorgeous and they are survivors, perfect plants for both the connoisseur and the weekend warrior. Originally from Asia, daylilies have adapted to our challenging and varied climates with all the vigor of our best native plants.

They grow in all United States regions, but thrive in USDA Hardiness Zones 4 through 9.

A good daylily variety will bloom continuously for 3 to 4 weeks. By choosing varieties carefully, you can have daylilies flowering for the entire perennial season, 3 months in the North to 10 months in the South.

It's an astonishing performance, but daylilies can do even more. They grow thickly enough to choke out most weeds. They excel at holding the soil on steep slopes and other erosion-prone spots. They bask in the heat of our summers, withstand intense sunlight, and survive drought better than most garden flowers.

That's why we see the old-fashioned Hemerocallis fulva along roadsides and stream banks in many parts of the country. It's one of the few garden plants to survive when farmsteads are abandoned.

The modern daylily, with its great variety of flower forms and colors, is an American creation. When A. B.

Stout started breeding daylilies at the New York Botanical Garden almost 100 years ago, there were only a handful of varieties, all of them very close to the dozen or so wild species being grown at that time.

Stout crossed wild varieties, and his success inspired the daylily boom we are in the midst of today. Since 1900 about 40,000 varieties have been named in the United States; 13,000 of them are still for sale.

Basic Features of a Modern Daylily

Daylilies are categorized in several different ways.

Deciduous kinds go dormant in frosty weather, evergreens can tolerate frost and grow all winter in mild regions, and there is an intermediate group called semi-evergreen.

The rule of thumb is to avoid deciduous daylilies south of zone 8 and avoid evergreens north of zone 7. It's good advice, though there are a few varieties in each group that defy the rule.

Most daylilies have arching foliage that grows 18 to 24 inches tall. Some varieties have erect foliage. Some are as low as 12 inches and others reach 3 feet. Leaf color ranges from pale green to dark green with a bluish cast.

The height provided in nursery descriptions and on plant labels doesn't refer to the foliage but to the length of the flower stalk or “scape.

” There is no correlation between height of the plant and the length of the scape, though most hold their flowers just above the leaves.

Flower scapes on the shorter varieties grow as high as 12 inches. Scapes of the tallest reach over 6 feet high.

Single daylilies have six petals. Double varieties have a second set of petals, often ruffled. Flower size ranges from 1 1/2 inches–the “miniature” varieties–to 8 or 9 inches across.

The color range of daylilies has expanded to include everything but blue and pure white. Many blossoms are bi- or tri-colored. Many modern daylilies are called “tetraploids.” They have twice as many chromosomes as the normal “diploid” varieties.

These sturdy varieties generally have larger leaves, stalks, and flowers.

Shopping for the Best

You'll find the greatest selection of daylilies in the catalogs of mail-order specialists. Most varieties cost $3 to $10, but you'll see some selling for hundreds of dollars. Remember, paying a lot doesn't ensure quality, only rarity.

For the typical gardener, selecting from the thousands of available varieties can be daunting. Here's some simple advice: Focus on the whole plant. If there are 4,000 daylilies with yellow flowers, common sense suggests that not all will grow in the same way. Some of those yellows grow significantly faster, produce more flowers, and have more attractive foliage than others.

If you look car at the plants in a display garden or a nursery, there are clues as to how they will grow in your garden.

Sun/Heat Tolerance
The best time to shop for daylilies is late in the afternoon on a sunny day, when you can see how the flowers stand up to the sun. Pale and red varieties are more prone to sun damage. You can also see how they will look at the end of the work day, the time when most of us are able to enjoy the garden.

Number of Flowers
Don't settle for varieties that bloom for less than 3 weeks. If this information isn't on the tag, count the number of buds on the flower stalk.

A good performer will have 15 or more buds per stalk. Each daylily flower, of course, remains open for only one day, and on the average one flower opens every other day.

It's easy to count the scars where buds have fallen off to see what the total for that variety is.

Where nights are very cool, daylily flowers don't open as readily in the morning. You can solve this problem by growing “nocturnals.” These are varieties with flowers that open at dusk and remain open throughout the following day.

Repeat Bloom
More and more daylilies send up a progression of flower stalks all season long. The most famous is 'Stella d'Oro'. Whether or not a variety repeats is usually noted on the label. But if you see a new scape rising at the base of a blooming plant, the plant is a repeat bloomer.

Strong Foliage
Daylily leaves will be a part of your garden far longer than the flowers, and not all daylilies have equally attractive foliage. The most beautiful varieties are dark green to blue-green and the leaves arch gracefully. When shopping, make sure the foliage covers the pot generously.

Rate of Increase
Daylilies can grow slowly, especially if the plants carry exotic blooms. A good landscape variety will at least triple in size each year. Extremely vigorous ones, 'Stella d'Oro', do even better. Rapid growers have plenty of flower power, and you can divide and replant them more frequently if you have a large area to fill.

Spent Bloom
When flowers of the best varieties fade, they roll up little cigarettes and drop off within two days. This is a trait that is easy to spot in the nursery, and one that is not shared by all varieties. Some hold faded flowers for days, or worse, drop them onto other buds and disfigure opening flowers.

How to Use Daylilies

Daylilies are stalwarts of the perennial border, but they shine in other spots, too. Vigorous daylilies make weed- and erosion-proof ground covers. Plant them on banks and roadsides or along waterways. Use dwarf daylilies in rock gardens, in containers, or as edging for flower beds.

When planting several daylily varieties, arrange drifts of a single variety. A random mix almost always looks spotty from spring through fall. Foliage varies tremendously among cultivars. So does bloom time and the height of the flower stalks. Group at least three clumps of one variety together and you'll get both a more natural look and a stronger impact at showtime.

Planting and Care

Daylilies grow best in full sun, ideally 6 hours or more daily. However, in hot and dry climates, they benefit from some afternoon shade, as well as irrigation during bloom. Also, many of the deep reds and the paler shades hold their colors better in partial shade. In any zone, daylilies will perform reasonably well with half a day's shade — they just won't bloom as vigorously.

Daylilies grow well in a wide range of soils. You can plant daylilies successfully almost any time the ground can be worked. The ideal time to transplant and divide is in spring as the shoots begin to emerge, or immediately after bloom.

In zones 9 and 10, plant in early spring (February or March) or fall; avoid planting in midsummer. wise in the Southeast, don't plant during midsummer because the high temperatures and humidity may cause new plants to rot.

When fall-planting in cold regions move the plants at least a month before hard frosts to allow new roots time to take hold against frost heaving.

Space plants 18 to 24 inches apart. Plant at the same height plants grew previously (the white at the base of the foliage) or slightly higher to allow for settling. Firm soil, then water.

Some cultivars can grow for 20 years without requiring division, but others may need division every second or third season. You'll know it's time when you notice flower production declining.

Regional Specialists

Many daylily varieties perform well over five hardiness zones. But a variety clearly superior in Georgia may be only average in San Diego. That's why it makes sense to buy from local daylily specialists or from mail-order specialists in your hardiness zone.

For information on daylily nurseries, contact the American Hemerocallis Society (Pat Mercer, AHS Executive Secretary, Box 10, Dexter, Georgia 31019).

It welcomes beginners and will send a free membership information packet that includes a source list with 118 nurseries, plus information about its 15 regional groups and 133 member display gardens, many of which have daylilies for sale. Membership is $18 annually and includes the quarterly Daylily Journal.

Top Garden Daylilies

The All-American Daylily Selection Council has screened over 6,000 varieties at more than 30 sites nationwide. The 10 listed below are the cream of the crop. All grow well in at least five contiguous hardiness zones, increase by 60 to 100 percent each year, and have attractive, spreading foliage. All bloom for two months or more. The range in blooming periods (“Days in bloom”) reflects the fact that flowering is concentrated in the North and spread out in the South.

NAME AND TYPE PLANT
(Width x Height)
FLOWERS
(Color; scape-height;diameter)
ZONES;
DAYS IN BLOOM
Bitsy
Deciduous
30″ x 20″ Lemon;
24″; 2″
5 to 10;
79 to 205
Black-Eyed Stella
Evergreen
22″ x 16″ Gold with red eye;
19″; 3″
5 to 10;
117 to 197
Forsyth Lemon Drop
Evergreen
22″ x 15″ Lemon;
20″; 3″
5 to 10;
125 to 185
Happy Returns
Deciduous
24″ x 15″ Yellow;
18″; 3″
3 to 7;
70 to 150
Lemon Lollypop
Deciduous
28″ x 15″ Lemon;
24″; 2.5″
5 to 10;
73 to 151
Leprechauns Wealth
Deciduous
24″ x 12″ Apricot;
21″; 2.5″
5 to 9;
67 to 110
Lullaby Baby
Evergreen
30″ x 19″ Light Pink;
24″; 3″
5 to 10;
38 to 109
May May
Deciduous
24″ x 20″ Off White;
30″; 31.5″
5 to 10;
100 to 111
So Sweet
Evergreen
32″ x 22″ Yellow
26″; 3″
5 to 9;
59 to 148
Stella d'Oro
Deciduous
30″ x 13″ Gold;
18″; 3″
5 to 8;
120 to 158

Source: https://garden.org/learn/articles/view/219/