A detailed guide to dahlia cutting propagation methods, teaching you the correct way to do it
Dahlias are one of the world's famous flower varieties, and there are already more than 30,000 dahlia cultivars. The usual sowing and division methods are both suitable for dahlias. In fact, dahlias can also be propagated by cuttings. The editor will now introduce the key points to note for dahlia cutting propagation.
Dahlia
For dahlia cuttings, the terminal buds, axillary buds and basal shoots from any part of the whole plant can be used, but basal shoots are best. Cuttings can be taken from early spring to summer and autumn, with the highest survival rate in March and April. Roots usually form about 2 weeks after cuttings are taken (though some gardeners have had cuttings that did not root for 1-2 months, yet leaves grew out). To improve the survival rate of cuttings, before cutting, place the root clumps in a greenhouse to force sprouting, maintaining a temperature above 15°C; they very easily all die off, and when the young shoots are 6-10 cm, that is, when the basal shoots have grown 2 true leaves, cut them off for cuttings.
Some gardeners have also tried water propagation and using vermiculite as a substrate for cuttings, and both can be successful (be sure not to expose them to the scorching sun). After the cuttings have rooted and survived, when they reach 15 cm, you can consider pinching the tops, which can make the dahlia plants more compact and produce more flowers.
The reason many gardeners want to try propagating dahlias from cuttings is that dahlia stems are both hollow and brittle, and are easily blown over and broken by the wind, so bamboo supports should be inserted promptly. Inserting bamboo can also prevent the branches from growing crooked and improve the ornamental value of potted plants. When the plant grows to more than 30 cm tall, a small bamboo stake should be inserted beside each branch and tied and secured with hemp fiber (or thin string); as the plant grows taller and taller, longer bamboo stakes should be replaced promptly, and the final bamboo stake inserted should reach up to the lower part of the flower bud.
Dahlia cutting propagation methods and techniques, an introduction to its cutting propagation steps
When it comes to dahlias, I believe everyone is familiar with them. The dahlia is a common ornamental flower, with a captivating fragrance and alluring colors, deeply loved by many gardeners. And cutting propagation is one of the most common ways to propagate dahlias. So, do you know the key points to note for cutting propagation? Let's learn about them together with the editor.
Besides dividing the rhizomes, dahlias can also be propagated directly by cuttings. So how are dahlia cuttings done? It is actually very simple, basically the same as cutting methods for other flowers. Here we mainly discuss the key points to note for dahlia cuttings.
For dahlia cuttings, the terminal buds, axillary buds and basal shoots from any part of the whole plant can be used, but basal shoots are best. Cuttings can be taken from early spring to summer and autumn, with the highest survival rate in March and April. Roots usually form about 2 weeks after cuttings are taken (though some gardeners have had cuttings that did not root for 1-2 months, yet leaves grew out). To improve the survival rate of cuttings, before cutting, place the root clumps in a greenhouse to force sprouting, maintaining a temperature above 15°C; they very easily all die off, and when the young shoots are 6-10 cm, that is, when the basal shoots have grown 2 true leaves, cut them off for cuttings.
Some gardeners have also tried water propagation and using vermiculite as a substrate for cuttings, and both can be successful (be sure not to expose them to the scorching sun). After the cuttings have rooted and survived, when they reach 15 cm, you can consider pinching the tops, which can make the dahlia plants more compact and produce more flowers.
Note: The reason many gardeners want to try propagating dahlias from cuttings is that dahlia stems are both hollow and brittle, and are easily blown over and broken by the wind, so bamboo supports should be inserted promptly. Inserting bamboo can also prevent the branches from growing crooked and improve the ornamental value of potted plants. When the plant grows to more than 30 cm tall, a small bamboo stake should be inserted beside each branch and tied and secured with hemp fiber (or thin string); as the plant grows taller and taller, longer bamboo stakes should be replaced promptly, and the final bamboo stake inserted should reach up to the lower part of the flower bud.
That is all the content I have learned about dahlias today. I hope it will be helpful to gardeners after reading this article. If you want to learn more about dahlias, please continue to follow Duorou Huapu, and we will provide you with more related knowledge!
How do dahlias propagate? Dahlia cutting propagation
The dahlia is also called the dahlia chrysanthemum, the Tianzhu peony, the sweet potato flower, the Dali flower, the passionflower and the foreign chrysanthemum, and is a perennial herb in the Asteraceae family. It is the national flower of Mexico, the provincial flower of Jilin Province, and the city flower of Zhangjiakou City, Hebei Province. The colorful and graceful dahlia symbolizes generosity, magnificence and great good fortune. Its footprints have spread to countries around the world, becoming a frequent guest in gardens and a world-famous ornamental flower.
1. Site selection and land preparation: Choose a field with deep tillage layer, loose and fertile soil, flat terrain and good drainage. Before deep plowing, apply 125 kg of superphosphate per mu as base fertilizer, plus 0.5 kg of 50% diazinon, to disinfect the soil. Deep plow the soil about 15 cm, then level and rake it, make high beds or flat beds 2 m wide with ditches 20 cm deep, and open the inner and outer "three ditches" well to facilitate drainage.
2. Cutting method: From June to August, when the lateral buds grow to 15-20 cm, cut and plant them immediately while removing the lateral buds. The cuttings need 3 buds, keeping the upper 2 buds; the third bud is cut down to the leaf base with the leaf blade removed, and inserted into the soil to a depth reaching the second bud. Water thoroughly, set up supports, and shade with double layers of 50% shade net. On sunny days, water once in the morning and once in the evening, watering continuously for half a month, keeping soil moisture at 90%. Roots form after 3 weeks, with a very high survival rate, and they can bloom in autumn of the same year.
3. Field management: After the cuttings have rooted and survived, in combination with cultivating and weeding, apply a saturated extract of compound fertilizer once before flowering and once after flowering. For each backpack sprayer (about 12.5 kg), add 400 ml of the mother solution for foliar topdressing. Once dahlias have rooted, deep cultivation is not advisable, so as to avoid damaging the tuberous roots and to prevent weed damage. Because the plants are juicy and soft, supports must be set up to prevent the stems and leaves from breaking. For small-flowered cultivars, pinch the tops when the seedlings are 15 cm tall, making the plants compact and sturdy and encouraging more flowers; remove spent flowers promptly to prolong the flowering period.
4. Disease and pest control: Dahlias mainly suffer from powdery mildew and brown spot, which harm the leaves, tender stems, flower stalks and flower buds of dahlias from June to October, affecting normal growth. Once discovered, control them early. Spray with 50% carbendazim at 500 times dilution or 50% zineb at 800 times dilution for control, which can effectively control the occurrence of diseases.
5. Harvesting and storage: The second flowering period of dahlias is from September to October. When the second flowering period ends and the plants stop growing, that is, before frost, leave 10 cm of the root crown, cut off the branches and leaves, dig up the tuberous roots, air-dry them for 1-2 days until the surface looks dry, and then store them in sand in a cold room at 3-5°C. The following spring they can sprout, send out shoots and bloom.
Through the detailed introduction in this article, I hope everyone can gain something from it! Thank you all for your support and attention to Duorou Huapu!