Dianthus is one of the easiest plants to grow. Between June and September, cuttings will root quickly and produce vigorous plants the following year. To take pipings, firmly grasp a non-flowering shoot just below a leaf node in one hand and pull the rest of the stem sharply with the other. You now have a cutting by removing the lowest leaves. Mark Trenear taught me that soaking the pipes in water overnight results in good cuts. Place them in a clippings compost and wrap them around the pot’s edge. Loam-based composts are more dependable for me than coir or peat-based composts. Keep in a dark spot outside, in a cold frame or a cool greenhouse out of direct sunshine.
The pipings should be rooted after three or four weeks and can be repotted in 9cm pots of potting dirt and grown on till the following spring.
How do you take cuttings from a dianthus plant?
Dianthus can be cultivated from stem cuttings, seeds started indoors, or simply sown into the soil.
Start seedlings inside 2-8 weeks before the last frost date in your location. Sprinkle seeds over the top of a light, loamy soil mix before covering with a little layer of dirt.
To keep the soil moist and warm, cover the container with a cloche or plastic bag. Move seedlings into their individual pots after they have 2-3 genuine leaves. Once they reach a height of 4-5 inches, transplant them outside.
Once all threat of frost has gone, straight sow seeds outdoors to a depth of 1/8 inch. Keep the soil moist, and thin to 8-12 inches apart after they have 2-3 leaves.
Cut several non-flowering stems from the parent plant right below a leaf joint to start stem cuttings.
Trim the lower leaves from the stem, leaving 4-5 sets of leaves at the top. Dip the base in hormone rooting powder and plant it up around the perimeter of a light potting soil container.
Fill a plastic bag halfway with water and secure the top with a twist tie. Set in a shady position in the garden that gets early sun but is protected from the scorching afternoon sun.
In around 4-5 weeks, stem cuttings should root. Remove the dirt ball from the cuttings and gently separate them, then pot them up into individual containers.
Overwinter in a warm, sheltered area away from frost and freezing weather. Once the soil has warmed up, plant out in the spring.
How long do dianthus cuttings take to root?
Make sure the soil is completely saturated with water. Keep the plants out of direct sunlight and away from the wind while you wait for the cuttings to root. In around 6 weeks, the roots should start to develop. Keep the soil moist until you see roots begin to sprout. Don’t let the soil become too dry, but don’t let it get too wet either.
Time it right
If you wish to take cuttings from a parent plant, such as a salvia, the ideal time is usually early spring. It’s a simple and enjoyable method to expand your plant collection.
Cuttings should always be taken first thing in the morning, while the parent plant is still turgid, or full of water. This ensures that you have the best possibility of rooting.
Cutting instructions
Cut a few healthy stems to a length of around 10cm using a clean pair of secateurs or a sharp knife.
Just below a node, trim the stems (or leaf joint). The biggest concentration of latent root buds can be found here.
Position the pot
Cover the pot with a clear plastic bag or place it in a heated propagator with a hood. Place in the sun, but not in direct sunlight.
This is a fantastic strategy to proliferate early in the season if you want to take cuttings. Watch our step-by-step video instruction to learn how to make softwood or soft tip cuttings later in the year, in the summer.
Remember to use the hashtag #30daygardenchallenge to share your progress with us.
Taking cuttings
- A non-flowering shoot from the parent plant can be cut or gently tugged away, and it should come away cleanly.
- Trim the stalk neatly just below a leaf joint and peel away the lower leaves to leave around four sets of leaves at the cutting’s top.
- Place numerous cuttings along the perimeter of a pot filled with compost, about 4cm (1.5in) apart.
- It’s best to use a 50/50 combination of clippings compost and horticultural grit. There’s plenty of water.
- If you’re making multiple sorts of cuttings, name each pot so you know what’s in it.
- Use a heated propagator if you have the space, or just tie a bag around the pot and bind it with an elastic band before placing it on a sunny ledge.
Aftercare
- Keep the compost moist, and the cuttings should root in four weeks if you look for roots growing through the holes in the pot’s base.
- Remove the pot gently and divide the compost root ball apart, being cautious not to injure the roots.
- Overwinter in a safe, frost-free location, potting on as needed, and in the spring, you’ll have healthy, robust plants to put out.
Should I cut back my dianthus?
Dianthus Pruning Trimming back some mounding dianthus plants can assist retain the plant’s form and promote healthy branching. During the summer growing season, any excessive or leggy stems growing from the plant can be trimmed back.
How do you propagate green dianthus from cuttings?
Cuttings are used to propagate Dianthus plants, ensuring that the new plants have the same qualities as the parent plant. After the plant has flowered, cuttings should be obtained in June or July. Before taking a cutting, make sure the plant is thoroughly watered. To avoid causing shock to the parent plant, take cuttings on a cloudy day. Cuttings should be rooted in a 50/50 mix of vermiculite and horticultural sand. Use caution while using beach sand, as it may contain dangerous salts or poisons. The rooting medium should be filled into 4 inch starting pots. Approximately 1/4 inch below a node, make a cut. Make sure there are multiple well-developed leaf nodes on the cutting. Rooting hormone powder is applied to the cutting (available online or from home and garden supply stores). The bottom leaf node should be included in the rooting hormone-soaked section of the stem. With the end of a pencil, poke a hole in the rooting medium. Place the cutting in the hole and carefully press the mixture around it to support and surround it. Keep the cuttings wet and in the sun until they are securely rooted. To conserve moisture, cover with a glass or plastic dome if possible. When many, robust roots have formed and new leaf growth is visible, transplant.
Do you cut back dianthus after flowering?
After the first flush of flowering in early June, cut back mounding dianthus kinds. To force the plant to create bushy growth and more flower buds, cut the plant’s height in half with clean shears. Remove the foliage from each plant and cut it back to within 1 to 2 inches of the earth.
How do you divide a dianthus Firewitch?
Remove as much soil as possible from around the roots by lifting the root ball. Cut the root ball into three to five equal-sized sections, cutting straight through from top to bottom, and discard any woody, leggy, or dead areas of the crown. Attempt to transplant the divisions as soon as possible. If you can’t, wrap each division’s root ball in damp newspaper and set it aside for an hour in a cool, shady location.
Can you transplant dianthus in fall?
Diving dianthus is best done in the early spring, before the plants begin to flower. During the growing season, you can divide, but your odds of success are slim. If you divide your plants after they’ve blossomed, make sure to deadhead the blossoms before transferring. Dianthus should not be transplanted too late in the growth season.
Can you take cuttings any time of year?
Cuttings are an excellent approach to grow new plants. Cuttings can be taken at any time of year and in a variety of methods, but the simplest (and most successful) strategy is to take stem cuttings in the summer. A variety of plants, including rosemary, lavender, and other shrubby perennials, can be used to make summer cuttings. They swiftly root and bulk up, allowing you to pot them on by autumn.
Root cuttings, basal cuttings, leaf cuttings, and hardwood cuttings are some other options to consider. If you master the basics, you’ll be able to propagate a wide range of plants in your garden with very little equipment.