Chinese Trumpet Vine

Chinese Trumpet Vine

Campsis grandiflora (Thunb.) Schum. Is a climbing vine of Bignoniaceae. The stem is woody, epidermis exfoliated, withered brown, clinging to other things by aerial roots; the leaves are opposite, and are odd pinnate compound leaves; the leaflets are 7-9, ovate to ovate lanceolate, with 6-7 pairs of lateral veins, glabrous on both sides and coarsely serrated on the edge; the leaf axis is 4-13 cm long; the petiole is 5 (- 10) mm long; the inflorescence axis is 15-20 cm long; the calyx is campanulate, 3 cm long; the flowers are small The inner surface of corolla is bright red, the outer surface is orange yellow, about 5 cm long, lobes are semicircular; stamens are inserted near the base of corolla tube; style is linear, about 3 cm long; capsule is slender as pod, apex is blunt, each fruit contains several seeds. The flowering period is from May to August.

Distributed in China and Japan; cultivated in Vietnam, India and Pakistan. It is strong in nature and warm in nature; it has a certain cold resistance; it grows well in sunshine but also shade; it can grow normally in saline alkali and barren soil, but it is better to grow in deep and fertile slightly acidic soil with good drainage.

It can be used for ornamental and medicinal purposes. The flower is a kind of diuretic medicine, which can cure traumatic injuries.

(general drawing reference:)

morphological character

Chinese Trumpet Vine

Climbing vines; stems woody, epidermis exfoliated, withered brown, aerial rooting on other things. Leaves opposite, odd pinnate compound; leaflets 7-9, ovate to ovate lanceolate, apex caudate acuminate, base broadly cuneate, both sides unequal, 3-6 (- 9) cm long, 1.5-3 (- 5) cm wide, lateral veins 6-7 pairs, both sides glabrous, margin coarsely serrated; rachis 4-13 cm long; petiole 5 (- 10) mm long.

Inflorescence terminal short panicle, rachis 15-20 cm long. Calyx campanulate, 3 cm long, splitting to middle, lobes lanceolate, ca. 1. 5 cm long. Corolla inside bright red, outside orange yellow, about 5 cm long, lobes semicircular. Stamens inserted near the base of corolla tube, filaments linear, slender, 2-2.5 cm long, anthers yellow, zigzag. Style linear, ca. 3 cm long, stigma flat, 2-lobed. Capsule slender as a pod, blunt apex, each fruit contains several seeds, seeds flat, most have thin wings.

Habitat of producing area

Distributed in China and Japan; cultivated in Vietnam, India and Pakistan. It is widely distributed in the Yangtze River Valley, Hebei, Shandong, Henan, Fujian, Guangdong, Guangxi and Shaanxi in China, and cultivated in Taiwan. It grows well in warm and alkaline soil, but it also likes to grow well in warm and alkaline soil.

Methods of reproduction

Lingxiao generally uses cutting propagation, in addition, it can also be propagated by seed sowing, layering, ramet and other methods.

Seed reproduction

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Generally, the seeds mature in October every year are used. After collection, the seeds are cleaned in spring, soaked in water for 2-3 days, and then sowed. Generally, the seeds can germinate in 5-7 days.

cuttage propagation

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In the north of China, the strong branches of the current year are usually cut as cuttings from November to December every year. Each section is 10-15cm long (generally with 3 nodes), and then the cuttings are stored in sand. The cuttings are planted in the seedbed from March to April the next year, and new roots are easily produced. In the south, the hard branches can be cut as cuttings in early spring, and the young branches (tender branches) of the current year can be cut as cuttings in summer. The cuttings are easy to survive and transplant after survival, and they can open in the next year FLOWER.

Layering propagation

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More survival, because there are many aerial roots on the stem of Lingxiao, they can be buried into the soil as roots. Cut the branches into small sections, generally 10-15 cm long, and lay them horizontally on the seedbed. Cover them with a thin layer of mature loess to keep them moist. Generally, 5-8 cm long roots can grow in 10-15 days, and transplant them into plants at an appropriate time.

division propagation

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Ramet propagation is to dig out the root and tiller seedlings from the rhizosphere and transplant them, which can survive quickly after transplantation.

cultivation techniques

Upper pot cultivation

Selection of basin soil:

It is better to choose neutral or slightly acidic sandy loam with good drainage performance and good air permeability, or mix rotten leaf soil and vegetable garden topsoil as potted soil. Before planting, the selected basin soil and decomposed organic fertilizer should be mixed well before planting. Flowerpot can choose the earthenware pot or cask with good air permeability. In addition to being directly planted under the pot rack, the flower rack can also be potted in containers on the ground of the flower rack, and the number can be determined according to the size of the rack surface. The container for cultivation should be larger, so that it has more potted soil. After potting, it grows vigorously, has luxuriant branches and leaves, and quickly becomes a landscape. Lingxiao likes light and can endure half shade, but if the plants often in half shade do not grow well and have few flowers and light colors, it is best to place them in places with sufficient sunshine, pay attention to ventilation, and remember not to place them in closed or airtight places.

Transplanting in pots:

Transplanting is usually carried out in March. Lingxiao cultivated in southern China can also be transplanted in autumn. When the new plant is planted, the decomposed organic fertilizer is used as the base fertilizer in the hole, and the water is poured once after planting. If it is a small seedling, it can also be transplanted in rainy season, but after planting, it is necessary to pay attention to shading to prevent the hot sun, keep the soil moist and promote the survival of new seedlings. Lingxiao grows very fast and has a large plant volume. For trellis planting, it is necessary to select a firm and durable support before planting. Later, with the growth of Lingxiao plants, it should be bound and pulled section by section to lead it to the support or climb to grow, so as to form a landscape effect as soon as possible.

Maintenance management:

Lingxiao likes to be wet and slightly tolerant to drought, but it is afraid of waterlogging. It should be watered frequently during the growing period to keep the basin soil moist, but not ponding. During the dormancy period from defoliation in late autumn to germination in the next spring, the basin soil was dry and slightly wet. After a period of cultivation, it is necessary to turn the pot and change the soil, add a little bone meal or organic fertilizer as the base fertilizer, and apply nitrogen fertilizer once 10-15 days after germination to promote the growth of branches and leaves. Since May, the application of nitrogen fertilizer should be reduced, and phosphorus and potassium fertilizer should be applied instead to promote flower bud differentiation and bud pregnancy. From June, 0.2% potassium dihydrogen phosphate was sprayed on the leaves every 7-10 days for overwintering. No fertilization in winter.

Pruning and shaping:

Potted Lingxiao can be pruned once in winter to cut off dead branches, over dense branches, disease and pest branches, so as to increase the internal ventilation and light transmission, and maintain a beautiful tree shape. If the seeds are not reserved after flowering, the residual flowers should be removed in time to avoid consuming too much nutrients and affecting the next flowering. Early spring can also be pruned according to the situation, cutting off the long branches, promoting the germination of strong branches, reducing the unnecessary nutrient consumption, concentrating the nutrient supply to the flowering branches, so as to make the flowers more flowery and improve the ornamental.

Open field cultivation

Planting Lingxiao is easy for cultivation and management. Transplanting can be carried out in spring and autumn. The plants usually need to carry soil lumps. After planting, the guiding rod should be set up to make it climb. After planting, weeding and soil loosening should be done 2-3 times during the growing period. In May of the first year, thin fecal water was applied, and water was poured once after application. From June to July, topdressing with superphosphate or urea can make the branches and leaves grow vigorously; in autumn, furrow is applied with compost or manure. From the second year, topdressing was carried out twice every year from June to July and autumn.

Lingxiao is cultivated in garden and field. It can be used for vertical greening and beautification of porches, scaffolds, walls, stone walls, dead trees, rockeries and flower gates. In order to achieve the ornamental effect, it must be pruned and pulled on the shelves in time. As a general ornamental, we should pay attention to timely pruning dead branches, pest branches and over dense branches, shorten and cut the long branches, promote their germination, more robust branches, reduce unnecessary nutrient consumption, which is conducive to flowering. If the seeds are not reserved after flowering, the residual flowers should be cut off in time to conserve energy and promote the next flowering. In the maintenance, with the growth of branches and vines, it is necessary to pull or bind them on the scaffolding, walls, flower gallery section by section to prevent them from creeping on the ground. According to the needs of the environment, some stems and vines can droop naturally, or they can be pulled upward by iron wire to form a piece, which is more elegant and beautiful. Clean up the dead branches before sprouting in early spring every year, cut off the long branches to make them grow evenly and show good ornamental effect.

Pest control

Generally, there are not many diseases and insect pests in Lingxiao, but we should pay attention to the prevention and control in time.

Disease:

The leaf spot and powdery mildew of Lingxiao are easy to cause defoliation and affect the ornamental effect. It can be sprayed with 1500 times 50% carbendazim WP or 2000 times 25% Triadimefon WP.

Pest:

In autumn drought, high temperature and high humidity season, camphor flower is easy to be damaged by aphids. 6% imidacloprid EC or 2.5% deltamethrin can be sprayed in time after occurrence. Bemisia tabaci and scale insects can be sprayed on both sides of leaves with 800-1200 times 40% dimethoate EC.

Main value

Viewing

Lingxiao Laogan is twisted, vigorous and simple. Its flower color is bright, fragrant and has a long flowering period. Therefore, it can be used as a indoor potted vine, and can be dressed up as various graphics according to the preferences of flower growers. It is a popular ground plant and potted flower.

medical

The flower of Lingxiao contains flavonoids: apigenin; phenylethanoid glycosides: verbascoside, namely eugenol glycoside and cornucoside; triterpenoids: oleanolic acid, ursolic acid, 23 hydroxyursolic acid, corosolic acid, hawthorn acid and ajianolic acid; sterols: β - sitosterol and daucosterol; volatile oils: furfural and 5-methylfurfural. The leaves of Lingxiao contain flavonoids: naringenin-7-o - α - l-rhamnoside (1 → 4) - rhamnoside

Chinese PinYin : Ling Xiao