Orange trumpet vine profile

Written by Maggie

Jan 09 2021

Orange trumpet vine profile

Orange Trumpet Vine is also known as Pyrostegia venusta, because it is planted around garden buildings and climbs on pergolas in early summer when clusters of red-orange flowers appear like firecrackers. They like light, warm and humid climates and acidic soil. It likes sunny environments and fertile, moist and acidic soil, and grows rapidly. In South China, it can keep evergreen branches and leaves, and can overwinter on the ground. It can be used for covering the walls of low-rise buildings or for vertical greening materials such as scaffolding, flower gallery and balcony.

When Orange Trumpet Vine (Pyrostegia venusta) blooms in spring, small golden flowers, dotted on the green walls, look like a string of firecrackers and explode like a spark, adding a festive touch to the Garden and environment.

Orange Trumpet Vine (Pyrostegia venusta) is native to Central America and is commonly grown in warm areas throughout the world. Large evergreen woody vine with linear, 3-lobed tendrils that can climb to heights of 7-8 m. Orange Trumpet Vine has 2-3 leaflets, ovate-ovate-rectangular, 4-10 cm long, apex acuminate, stem broadly cuneate to rounded, petiole pubescent. Flowers are orange - red, about 6 cm long. The calyx is campanulate, glandular. The corolla is thick, inverted, with distinct white tomentose, many closely arranged into a pendulous panicle. It likes sunny environments and fertile, moist and acidic soil, and grows rapidly. In South China, it can keep evergreen branches and leaves, and can overwinter on the ground.

Orange trumpet vine picture

Orange trumpet vine

Morphological characteristics of Orange trumpet vine

Orange Trumpet Vine (Pyrostegia venusta), a large evergreen vine. Leaves are opposite; It has 2-3 leaflets, ovate, apex acuminate, base nearly round, 4-10 cm long, 3-5 cm wide, upper and lower sides glabrous, with very fine scattered glandular acupoints below, whole. The leaf axis ca. is 2 cm, petiole 5-20 mm long. Panicles are borne at the apex of lateral branches, ca. 10 -- 12 cm.

The calyx is campanulate, with 5 denticulations. The corolla is tubular, with a ring in the middle of the inner surface, the base contracted, orange red, lobes 5, long elliptic, valvate arrangement when buds, flowers reflexed after opening, margin covered by white pubescent. Stamens born in the middle of corolla tube, filaments filiform, anthers divergent. The ovary is cylindrical, densely pilose, style fine, stigmas liguate flat, style and filaments are extended outside the corolla tube.

The fruit flap is leathery, canoe - shaped, with many rows of seeds, seeds with wings, film quality, few flowers fruity. It has three branches of filamentous tendrils and can climb up to 7 ~ 8 meters.

Orange Trumpet Vine (Pyrostegia venusta) is a large evergreen woody vine with threadlike, 3-lobed tendrils that can climb up to 7-8 m. It has 2-3 leaflets, ovate-rectangular, 4-10 cm long, apex acuminate, stem broadly cuneate to rounded, petiole pubescent. Flowers are orange - red, about 6 cm long.

Leaves have glandular spots, verdant luxurant, tendrils have 3 cracks, climbing other things; Flowers are in a string, drooping, bud like a brocade, corolla if the bell, filaments such as point crimson, full shed full frame, very bright. When it comes to Chinese and foreign festivals, such as New Year's Day, Christmas, and the New Year, an Orange trumpet is blown up in a series of bright Orange flowers, which resemble firecrackers (hence the name), and thus add to the festive atmosphere. As the ancients put it, "Firecrackers blow away the old year with the sound of a firecracker", an Orange trumpet is blown up on a vine, which is a kind of seasonal flower.

It is said that its origin in Central America's Brazil, the introduction of our country has a history of more than 100 years. It is a large evergreen vine of the genus Orange Trumpet Vine in the Vladivosiaceae. Orange Trumpet Vine is also known as flame rattan, golden corral, its inflorescence even arranged in a string, numerous drooping, like festive firecrackers.

Ecological Habits of Orange Trumpet Vine

Orange Trumpet Vine (Pyrostegia venusta) prefers a sunny environment and fertile, moist, acidic soil. It grows rapidly. In South China, it keeps its branches and leaves green and can be exposed to the ground for winter.Because tendrils are mostly born in the upper branches and stem joints, the whole plant can be fixed on other things to grow.

Orange Trumpet Vine is a positive light-loving plant that likes warm, high temperature and humid climate. It is suitable for growing in sunny and ventilated places. The soil should be sandy loam with good drainage.Strong vitality, vigorous growth, easy cultivation. Orange Trumpet Vine is more planted in the courtyard, grid frame, Flower door and fence, for vertical greening.

The geographical distribution of Orange Trumpet Vine

Orange Trumpet Vine (Pyrostegia venusta) is native to South America, Brazil, in tropical Asia has been widely cultivated as garden ornamental pergola plants. China Guangdong (Guangzhou), Hainan, Guangxi, Fujian, Taiwan, Yunnan (Kunming, Xishuangbanna) and other places are cultivated.

Orange trumpet vine

Orange trumpet vine propagation techniques

To propagate by layering or cutting. Layering propagation can be carried out in spring or summer, about January to start the root, and it can be separated in March from the mother plant transplantation. Cuttage propagation is also carried out in spring and summer.

Orange Trumpet Vine field management

Choose the place

Cultivation place, should choose the sunny, ventilated cool place. Orange Trumpet Vine is less soil intensive, but grows better when planted in rich, well-drained, rich, rich soil.

Planting hole to dig a little bigger, and apply sufficient base fertilizer, base fertilizer should be used to decompile and add an appropriate amount of bean cake or bone meal.Hole soil to mix evenly, and need to pour 1 time to permeate, let it ferment for 1 ~ 2 months before colonization. After the first watering thoroughly, it needs shade. When waiting for seedlings to grow tall 70 cm or so, we need to set scaffold, pull its branch on the frame, and we need to undertake picking the heart, making a germination side branch, in order to be conducive to more flowering. 


Fertilizer and water should be appropriate. Fast production, lots of flowers, long flowering period, so full of fat and water should be needed. Top dressing should be applied once a month during growth. Top dressing should be used with decrepit and thin bean cake water or compound chemical fertilizer to promote its luxuriant foliage and blooming branches. To keep the soil wet, the number of watering should depend on the soil wet conditions, in hot summer in addition to watering, but also to the branches and leaves every day 2 ~ 3 times and around the ground sprinkling water, in order to improve the air humidity. Autumn into the flower bud differentiation period, watering should be reduced, fertilization should be turned to phosphate fertilizer. During the growing season, thin liquid fertilizer combined with nitrogen and phosphorus should be applied once every 2 weeks or so. Pregnant bud period topdressing with nitrogen fertilizer - based liquid fertilizer, for the benefit of flowering and plant growth. Watering should be sufficient, at the same time to sprinkle water on the ground near the pot, in order to improve the air humidity. In autumn, it began to enter the flower bud differentiation period, and watering needs to be appropriate less at this time, in order to control nutrition growth, to promote flower bud differentiation.


Orange Trumpet Vine (Pyrostegia venusta), a perennial, evergreen climbing vine having a tendrils that allow it to grow upwards with the aid of other plants. For family cultivation, in order to improve the ornamental effect, large and deep pots can be used when planting. When the seedlings grow to a certain height, a flower stand can be built in the pot, and the stems and tendrils are tied to the flower stand, and the distribution should be paid attention to evenly, and the plants should be placed on the balcony with sufficient sunlight for maintenance. Also we can plant it inside a big basin, a flower frame is set on the balcony, let it climb upward to grow, when waiting for the branch to grow to a certain height on the attached object. We need to hit top, make buds new branches, and facilitate blossom more. Open the branch that spends, the coming year is not in blossom, and the new growth branch wants a pregnant bud, because this is right a few old branches, weak branch to wait to want timely cut off, lest consume nutrient, affect the second year blossom. 

Orange trumpet vine

Orange Trumpet Vine Pest control


For common leaf spot and powdery mildew, spray with 50% carbendazim WP 1500 times liquid.

Insect pests

The pests include mealworms and scale worms, which can be killed by spraying 40% oxidized dimethoate emulsion 1200 times.

Orange Trumpet Vine flower language

Happy days are blossoming.