4 propagation methods for trumpet vine, master the money-saving cutting technique

Trumpet vine (Campsis), a flower with beautiful blooms and tenacious vitality, is deeply loved by gardening enthusiasts. But friends who grow trumpet vine should know that a single plant or a single pot of trumpet vine looks quite monotonous, so what to do then? To save money, gardening enthusiasts should master the propagation methods of trumpet vine. As for how trumpet vine is propagated, there are mainly 4 methods: cutting, layering, division and sowing. Let's take a look together.

I. How trumpet vine is propagated: cutting / layering / division / sowing

Many people should have seen trumpet vine; it looks like a morning glory, only bigger and more brightly colored. A single trumpet vine flower is delicate and plain, and only a group of trumpet vine flowers looks stunning, and this requires propagation. There are mainly 4 propagation methods for trumpet vine: cutting, layering, division and sowing. Among them, home propagation commonly uses cutting and layering, as the methods are relatively simple with a high survival rate!

II. Propagation methods of trumpet vine

Trumpet vine has strong adaptability, and its reproductive capacity is not bad either. However, trumpet vine does not easily set fruit, and it is very difficult to obtain seeds, so trumpet vine propagation mainly adopts the cutting method and the layering method. Below, the editor will focus on introducing these two propagation methods.

1. Cutting propagation

① Cutting time

For cutting propagation, choosing the right time is very important, as this can increase the survival rate. Generally speaking, it is mostly done in spring in the south, while in the north it is generally done in autumn, and in the middle and lower reaches of the Yangtze River it is suitable to do it in April-May.

② Selection of cuttings

The selection of cuttings should be done in advance, generally starting in November-December each year. Cut robust, pest- and disease-free branches as cuttings, cut each branch into about 13 cm, and it is best to ensure the branch has 3 nodes, then store them in sand.

③ Starting the cuttings

Insert the previously prepared cuttings directly into the soil. The insertion depth is 1/2 of the cutting. After inserting, cover the pot with glass to ensure sufficient temperature and humidity, and control the temperature at 23-28°C.

④ Rooting after 20 days

After completing the above steps, the cutting of trumpet vine is basically done. After that, it can root in 20 days, and by the following spring it can be divided into pots for planting. It is worth mentioning that cuttings in southern regions do not need to be so troublesome; you can directly cut fresh young branches of the current year in spring, insert them into the soil, and with good control of temperature and humidity, they will quickly root and survive.

2. Layering propagation

Besides cutting, layering is also one of the propagation methods for trumpet vine. The operation is relatively simple and can be carried out in spring, summer and autumn, but it is best done in July. Select thick and strong branches, pull the vines down to the ground surface, bury them in sections with soil, leave the buds exposed, and keep the soil moist.

Layering propagation of trumpet vine is relatively commonly used in homes. For potted trumpet vine, you can directly pull the branches down into another flower pot, bury the branches, and after they root, separate the branches from the mother plant. After the above operations, they can root in about 50 days, and after rooting, cut off the branches, dig them out and transplant them.

3. Sowing propagation of trumpet vine

Although it is very difficult to obtain seeds from trumpet vine, they can still be obtained, so one of the propagation methods of trumpet vine is sowing. The sowing season for trumpet vine is spring, but the seeds mature around October. Before sowing, carefully select and purchase seeds, soak them in clean water for 2-3 days; on one hand, this can promote germination and increase the germination rate;

on the other hand, eliminate the seeds floating on the water surface to avoid wasted effort when sowing. In March, when spring is warm and flowers bloom, choose a sunny day, sow the seeds in pots, or in a seedling tray, control the humidity well, and once they germinate and grow leaves they can be potted up!

4. Root division propagation of trumpet vine

Root division is also one of the propagation methods of trumpet vine, but it has a prerequisite, which is that the part of the plant near the ground grows many new seedlings. In spring, these small seedlings can be dug out and planted. Of course, for most gardening enthusiasts, sowing and root division do not need to be mastered; just understanding them is enough.

How is trumpet vine propagated by cutting? Methods for cutting propagation of trumpet vine

How is trumpet vine propagated by cutting? Trumpet vine is a plant of the genus Campsis in the family Bignoniaceae. Its flowers are beautiful in color, and it is a courtyard plant that many people want to grow. Today we will talk about the asexual cutting tissue culture propagation technique of trumpet vine.

Trumpet vine is mainly produced in China, and is distributed throughout the north and south of our country, mainly produced in Jiangsu, Zhejiang and other places. It grows in valleys, beside streams, under sparse forests, or climbs on trees, stone walls, or is cultivated artificially. Trumpet vine has brilliant flower colors and a long flowering period. It is an excellent vertical greening plant material with extremely strong ornamental value and ecological value. In addition, trumpet vine is also a traditional Chinese medicinal material, with the effects of promoting blood circulation and removing blood stasis, cooling blood and dispelling wind.

1 Cutting propagation

Trumpet vine prefers a warm and humid environment, has no strict requirements for soil, and can grow in sandy loam and clay loam.

1.1 Preparation of cuttings

In spring or the rainy season, select pest- and disease-free, robust half-year-old or one-year-old branches of trumpet vine, cut them to about 20 cm long, with two pairs of axillary buds as cuttings, remove the leaves, cut the top flat and cut the bottom into a horseshoe shape, and insert them into clean water for later use.

1.2 Preparation of agents

Although trumpet vine is easy to root by cutting, in order to improve the cutting survival rate and shorten the time, it is also necessary to prepare nutrient solution and rooting agent. The specific formulas are as follows:

(1) Use MS as the basic medium, take 1/2/L each of macronutrients and iron salt, IBA 0.1 mg/L, to prepare a nutrient rooting solution;

(2) Directly use rooting powder according to the concentration in the instructions to prepare a solution for later use.

1.3 Cutting substrate

The substrate uses newly bought vermiculite. Before use, first expose it to the sun, or treat it with a 2% to 5% potassium permanganate solution, then put it into a medium-sized white translucent nutrient pot, filling to 1/2 height.

1.4 Cutting method

Insert the cuttings into the prepared nutrient pots, 5 cuttings per pot, with the insertion depth being 1/2 of the cutting. After inserting, place them in a plastic tray (40 small nutrient pots per tray), pour in the prepared rooting solution, and after completely soaking, cover with white plastic film to seal. Cultivate under greenhouse conditions of 18 to 25°C and diffused light of 2500lx. Keep the humidity in the nutrient pots suitable; after about 18-25d the rooting rate can reach 85% to 92%. Then a slit can be cut in the film for ventilation, and after about 35d remove the film and enter routine management.

2 Tissue culture propagation

2.1 Treatment of explants

In spring, cut the newly sprouted terminal buds and upper 1 to 2-node stem segments with buds of trumpet vine, remove the leaves, rinse with diluted dish soap, then wash clean with tap water. On an ultra-clean workbench, soak in 70% alcohol solution for 10 s, rinse 2 times with sterile water, then disinfect with 0.1% mercuric chloride for 3 to 6 min, rinse 5 times with sterile water, and finally blot dry with sterile filter paper for later use.

Cut the treated explants into 1 to 2 cm long single-bud stem segments, and inoculate them into bud induction medium: MS+BA 0.1 mg/L+IAA 0.1 mg/L, sugar 30 g/L, agar 5 g/L, pH 5.8. The culture conditions are: temperature (25±2)°C, relative humidity 50% to 75%, light 1800 to 2500lx. After 2 weeks the explant buds begin to germinate, and after 4 weeks the new shoots can grow to 2 to 3 cm. Select robust buds and transfer them to bud proliferation medium: MS+BA 0.5 mg/L+IAA 0.2 mg/L, sugar 30 g/L, agar 5 g/L, pH 5.8; after 3 weeks bud clusters can form, with a multiplication coefficient above 5. Select robust clustered buds, cut them into 2 cm height, and transfer them to rooting medium of 1/2MS+IBA 0.2 mg/L, sugar 10 g/L, agar 5 g/L, pH 5.8 for culture. After 3 weeks, 4 to 5 fibrous roots can grow from the base, forming complete plantlets 2.5 to 3 cm high.

2.3 Hardening and transplanting

Move the well-grown trumpet vine bottle plantlets into a solar greenhouse and harden them under natural light for 1 week. One day before transplanting, open the bottle cap and inject a little clean water. The next day, use tweezers to take out the plantlets, wash off the medium at the base with clean water, soak in a 1000-fold sterilization solution for 5 min, and transplant into disinfected pure vermiculite small nutrient pots. Place 4 plants per pot, gather them together, and build a small arch shed over them. Keep the temperature inside the shed at 15 to 25°C, air humidity 80% to 90%, and cover with a shade net on sunny days to control temperature.

After 1 week, gradually ventilate and let in light. During this period, special attention should be paid to moisture retention. Use a small amount but frequent watering method to replenish water in time, and spray a fungicide once on sunny days to prevent seedling rot. After 5 weeks, new roots grow, and the seedling survival rate reaches above 90%. Mix garden soil, cow dung and fine sand in a ratio of 2:1:1, and sterilize by fumigation with formaldehyde. Use large white plastic pots; the surviving seedlings can be directly potted, 1 plant per pot. After potting, replenish water in time, and pay attention to shading and ventilation according to weather changes. Once new buds emerge, routine management can begin.

The above is the asexual cutting tissue culture propagation technique of trumpet vine. Seedling growers who grow trumpet vine at home can take a look. For more wonderful content, stay tuned to Huinong Network!

How trumpet vine is propagated: 3 methods of cutting, layering and division

For the cutting time of trumpet vine, it is generally better to do it in spring in the south, while in the north it is better to do cuttings in autumn, and in the middle and lower reaches of the Yangtze River it is generally better to do it in April-May. The survival rate of trumpet vine cuttings is very high.

First, select robust branches of trumpet vine that are free of pests and diseases, cut off the selected branches, cut the long branches into 10-15 cm small sections, place them in a ventilated place to dry, and after the wounds on the branches have dried, directly insert the trumpet vine branches into the soil. Generally, trumpet vine roots in about 20 days after cutting.

The layering time for trumpet vine can generally be carried out in spring, summer and autumn, and the layering operation method is relatively simple. First, select the branches to be used for layering, bury the branches in the soil, and keep the soil moist. Generally, roots will slowly grow on the trumpet vine stem, and generally after about 50 days when rooting and survival occur, the branches can be cut off and transplanted.

The division time for trumpet vine is generally in early spring, which is to dig out the trumpet vine seedlings produced from root buds near the mother plant, and plant them separately in pots.