Dianthus, also known as “pinks,” is a diverse genus of flowers most recognized for its fragrant, vividly pink blossoms. They are suitable for most flower gardens because they are adaptable and hardy. Here’s how to cultivate dianthus flowers in your garden and take care of them.
About Dianthus
Dianthus is a plant that is native to Europe and Asia. Its variants range from creeping ground covers ideal for rock gardens to blooming stems that are at least 24 inches long and good for cutting. These flowers are also frequently referred to as “pinks” because of either their distinctively pink blooms or the fringed (i.e., “pinked”) edges of those blooms. In any event, the sunny border plants or containers on the deck or patio are cheered up by their vibrant, five-petalled flowers.
Dianthus are well-liked for a variety of reasons. If you deadhead the faded blooms, they will continue to bloom throughout the summer in addition to producing an abundance of starry flowers. Additionally, they have a beautiful clove-like scent. In addition, the flowers draw hummingbirds, butterflies, and other pollinators to the area.
When to Plant Dianthus
- Early in the spring, when a light frost is still possible, direct seed outdoors. Lightly cover the seeds; they require light to sprout.
- To promote deep roots, it is ideal to plant adult dianthus plants in the cooler months of spring or fall.
Choosing and Preparing a Planting Site
- Although it may tolerate little shade, dianthus should be planted in full sunlight.
- In order to prevent illnesses, well-drained soil and sufficient air circulation are essential. If necessary, improve the soil’s drainage. Study up on how to prepare the soil for planting.
How to Plant Dianthus
- Transplants should be placed so that the soil surface is level with the crown.
- Depending on the cultivar, leave 6 to 12 inches between plants.
- Water sparingly.
- Around the plants, spread a thin layer of dry organic mulch.
- Six to eight weeks before the last spring frost, start seeds indoors. Lightly press seeds into damp potting soil. Keep wet and lightly covered. Heat the bottom up if you can.
- When seedlings emerge from the dirt, put seed trays in a bright window.
- When seedlings have four sets of leaves and there is no chance of a frost, harden them off and transfer them.
How to Grow Dianthus
- Water sparingly and only when the soil seems dry.
- During the growing season, fertilize your plants a few times with a fertilizer that is balanced (equal parts nitrogen, phosphorus, and potassium), or a phosphate-rich tomato fertilizer.
- For more blooms, deadhead wilted flowers and remove the stems as well.
- To promote a second crop of flowers later in the season, shear plants back after they have finished blooming in the late summer.
- If blossoms are not removed, a lot of types self-seed.
- Leave evergreen leaves for fall and winter appeal at the end of the season, or trim stems back to 1 to 2 inches above the earth.
- Every two to three years, in the early spring or after flowering, divide existing plants.
The best types for backyard gardens, according to the North American Dianthus Society, are as follows:
- Alpine pinks (Dianthus alpinus) and Cheddar pinks (D. gratianopolitanus) and their hybrids are hardy rock garden pinks. They have small, highly scented flowers on 2- to 6-inch-tall plants with grassy gray-green foliage. They are hardy in Zones 3 to 9.
- Cottage pinks (D. plumarius): hardy in Zones 3 to 9, with clove-scented, lilac-pink flowers and grass-like foliage that is 12 to 15 inches tall. Deadhead for fall rebloom.
- Hardy perennials in zones 7 to 10 with mildly scented flowers on 6- to 10-inch-tall stalks on 3- to 4-inch-high mounds are called China pinks (D. chinensis).
- Clusterheads, such as Sweet William (D. barbatus), are annual, biennial, or short-lived perennial plants that are hardy in Zones 3 to 9. They have clusters of single or double white, pink, red, or salmon flowers on 12- to 24-inch-tall stalks.
- Carnations (D. caryophyllus), often known as the florist’s flower, are hardy in zones 5 to 8 and feature multi-petalled blooms on 12- to 24-inch stalks with curly, blue-green leaves. Instead of frost-tender kinds that need a greenhouse, pick hardy perennial border carnations, also known as “wild carnations.”
Do Dianthus flowers reappear each year?
Biennial and perennial dianthus can thrive in USDA plant hardiness zones 3 through 10 depending on the species and cultivar. Nearly all Dianthus species will reseed and sprout new plants the following spring, and biennials and perennials will return for at least two years.
How is underground Dianthus cared for?
Pinks can be grown anywhere that will provide them with at least 6 hours of sun, including in full sun and partial shade. The plants require fertile, alkaline, well-drained soil. When planting dianthus, wait until the threat of frost has gone and set them at the same height they were at in the pots, with 12 to 18 inches (30-46 cm.)
Are Dianthus plants invasive?
The classic cottage border is composed of sweet william. The plants have leaves that are held above clusters of red, pink, white, purplish, or bicolored blooms that are about 18 inches tall. As cut flowers, they last a very long time in vases and have a pleasant aroma. Although individual plants are erect and do not spread, if the blossoms are not cut and the seeds are allowed to develop, the plants will spread by self-seeding.
Dianthus—is it a suitable ground cover?
Dianthus gratianopolitanus features gorgeous gray-green evergreen foliage and incredibly stunning, frequently scented blooms that blanket the plant for an extended period of time in a stunningly attractive display of color. It excels as a groundcover, especially on dry slopes.
Can dianthus endure the winter?
Annual dianthus can withstand minor frost without issue, but strong freezes can harm the plant. Dianthus can be grown as a winter annual when the winters are mild.
How long does dianthus live?
Though not every species and cultivar in the genus Dianthus has a lengthy bloom time, it is a nice door to knock on if you want blooms all summer long. However, several well-known varieties of Dianthus do match the bill, blooming in milder climates from spring through October.
One of them is Sweet William. Sweet William, according to the Missouri Botanical Garden, has thick, flat-topped flower clusters in red, pink, and white hues that reach a height of 24 inches. Some cultivars of sweet William have compact plants, double flower blossoms, and flowers in contrasting colors. These Dianthus flowers, which were sown the previous autumn, blossom in the spring and can last through the first frost.
Although these plants have a limited lifespan, they are frequently planted as annuals in Missouri and other frigid climates. Annuals have a single growth season of life. However, a lot of Dianthus species reproduce annually. They consequently develop again each spring. Be aware that double-flowered varieties may not always grow back in the same way.
How is dianthus prepared for winter?
Different species within a genus have different levels of plant hardiness. Although the most majority of Dianthus species thrive in backyard gardens, the majority of species can be planted and grown in USDA zones 3 to 9.
Start seedlings during the winter or take cuttings from the plant for the next season if you’re not sure if the plants will survive the winter. Sweet Williams only achieves a height of 18 inches during the growth season, while the majority of carnations will reach a height of 24 inches.
Alpine pinks are the smallest species in the genus, only growing to heights of 4 to 6 inches, and pinks will grow into mounds that reach 6 to 10 inches in height. Ideal for planting in rock gardens is the alpine pink Dianthus.
Short pinks that form mounds make for a captivating addition in garden borders, as well as in window boxes and rockeries. It is better to place the tall sweet Williams and carnations farther back in flowerbeds where they may tower over other plants and flowers and offer an extra depth of color to the area.
All varieties of Dianthus prefer to grow in parts of the garden that get full daily sun. The plants may flower later and less enthusiastically if they are planted in regions that receive afternoon shadow.
Dianthus dislikes having its “feet wet,” thus it needs soil that drains efficiently. Root rot and disease can occur in plants as a result of overly saturated soil. To prevent diseases like rust and white powdery mildew, gardeners must also make sure that the plant’s foliage and blooms get enough airflow.
Work some rich compost into the soil in the flowerbed before planting your Dianthus. Make an effort to loosen the soil to a depth of 12 inches, and make sure to thoroughly incorporate the compost into the ground. To help the plant with the flowering season, add an additional 1-inch top-dressing around the base of the plant in the spring. This will add more nutrients to the soil.
Gardeners must be sure to give their young Dianthus plants at least one weekly watering and to let the soil dry out in between. Use a 20-10-20 ratio all-purpose liquid plant fertilizer to fertilize your Dianthus. In the late spring, you can also spread a slow-releasing granular fertilizer all around the plant’s base.
In order to avoid the development of seeds and encourage a second round of flowering before the end of the growing season, gardeners must make sure they snip or pinch off the dead blooms. Gardeners should trim the flower stalks to the ground when the growing season is finished.
Before the first ground frosts, spread a 4-inch layer of mulch around the base of your Dianthus plant to give it further winter protection. After the last frost has passed, remove the mulch to give the plant time to begin its growing season.
Does the dianthus grow back?
The use of special scissors with saw-toothed blades is necessary because woven fabric will tear when cut. Fraying is prevented by the zigzag cut, which restricts the length of each thread.
These “pinking scissors” were given their name after the pink plant in the genus Dianthus, not the color pink. In fact, the ragged edges of the Dianthus petals resemble those of pinking shears.
Similar to how lilacs can be white or deep red, but have come to be associated with a light purple hue, the pale red hue recognized as pink may have originated from one of the garden pinks’ most well-known hues.
Carnations (Dianthus caryophyllus) and Sweet William are examples of perennials that belong to the Garden Pinks or Dianthus genus (Dianthus barbatus). Though some carnations can grow up to three feet tall, the majority only reach heights of 10 to 20 inches.
Pinks (Dianthus plumarius) grow quickly and may withstand deer. The colorful, fragrant blossoms make wonderful cut flowers and come in a variety of hues. Start Pinks (Dianthus) seeds inside six to eight weeks before your last frost for the earliest flowers. They normally bloom the first year after being started indoors.
Once the earth has warmed up and any chance of a frost has passed, you can also plant Pinks seeds directly in the garden. Pinks won’t likely bloom the first year after being planted directly in the garden. In light, well-drained soil in direct sunlight, plant the seeds one-eighth of an inch deep. Rich soil with a pH of 6.75 that is slightly alkaline is ideal for them. Crushed dolomitic limestone should be added if your soil’s pH is under 7.0. Add wood ashes to your soil to reduce acidity if it is too acidic.
Pinks can also be multiplied by splitting up existing clumps of plants or by taking cuttings.
In the spring or the first part of the summer, take softwood tip cuttings. Apply rooting hormone to the cuttings before planting them in flats or pots. Your plants should be fully rooted and tough enough to set out into the garden by fall if you keep them moist but not soggy.
Pinks that are older clumps can be separated and replanted. Old clumps can be divided to revitalize the existing plants. When they first grow in the early spring, it is simple to divide them. Simply dig the entire clump up, roots and all, and use your hands to carefully pry it apart. Use two gardening forks to cut into the middle of the clump if it is too large or robust, and then slowly peel the plant apart. Each component must have roots and be prepared for fast replanting. Every three to four years, you should divide your Pinks. Once a week is adequate, unless the soil is really dry.
Never bury any portion of the stems or crown, and do not mulch them, as pinks grow from a crown or leaves at the top of the root system.
In order to prolong the blooming season, remove any fading flowers as they pass away. You can let some of the pink flowers go to seed to maximize the number of blooms the next year because they frequently reseed themselves.
Cut the plants back to just an inch or two above the earth after your first deadly frost in the fall. Pink flowers thrive in pots, at the front of mixed borders, as a cutting garden, and as a component of cottage gardens.
Use the nutmeg-scented blooms in salads, as cake decorations, or soaked in wine and dusted with sugar. The French liqueur Chartreuse contains several unidentified components, including pinks.
Pink is a flower, a hue, and a mood, so much so that Tea Set, a band that went by that name before changing, would later sell over 250 million records and have an effect on David Bowie, Queen, Phish, Radiohead, and Yes.
In order to create Pink Floyd, they blended the names of the blues musicians Pink Anderson and Floyd Council. And that gave music-loving gardeners the warm fuzzies.