Trumpet Vine
A vigorous native climber with large, trumpet-shaped orange-red flowers that are irresistible to hummingbirds throughout summer.
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Meet Trumpet Vine
A vigorous native climber with large, trumpet-shaped orange-red flowers that are irresistible to hummingbirds throughout summer. Trumpet vine attaches by aerial rootlets and can damage wood siding, so plant on sturdy masonry walls, fences, or arbors. It is aggressive and spreads by root suckers, requiring firm management to prevent takeover.
When to plant Trumpet Vine
Trumpet vine is most easily propagated by digging up root suckers or taking root cuttings in late autumn. For seed propagation, collect the long seed pods in autumn, extract seeds, and cold-stratify in moist sand for two months. Sow in spring in pots of ordinary compost. Seeds germinate within two to four weeks. Seedlings grow rapidly and can reach several feet in their first season. Plants from seed may take three to four years to flower. Named cultivars do not come true from seed.
Your Trumpet Vine Year
Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1
Sow Trumpet Vine Mar – May, pick Jul – Sep. Set your climate below and every date on this plate re-times itself.
How to grow Trumpet Vine
Plant trumpet vine in spring in full sun with average, well-drained soil. This extremely vigorous native climber attaches to surfaces by aerial rootlets and can reach forty feet or more, so provide a very sturdy support structure such as a masonry wall, heavy-duty arbor, or metal trellis. Do not plant against wood siding, as the rootlets can damage the surface and the vine's weight can pull away gutters and trim.
Trumpet vine is remarkably low-maintenance once established, tolerating drought, poor soil, and urban pollution with ease. The large, showy orange-red trumpet flowers appear in clusters from midsummer through early fall and are magnets for hummingbirds. Feed sparingly, as excess fertility promotes rampant vegetative growth at the expense of flowers. In fact, slightly stressing the vine often improves flowering.
The greatest challenge with trumpet vine is controlling its aggressive spreading habit. It sends up vigorous root suckers that can appear many feet from the mother plant, popping up through lawns, sidewalk cracks, and neighboring gardens. Mow or pull suckers regularly. Prune hard in late winter, cutting the previous season's growth back to two or three buds from the main framework. This severe pruning encourages the best flowering on new wood.
Trumpet Vine needs more room than a 4 × 8 ft bed gives
Each Trumpet Vine wants 300 cm of elbow room. The planner keeps that spacing for you — every plant, every bed.
Trumpet Vine's best neighbours
Trumpet vine is best used as a standalone specimen on a large wall or sturdy structure where its vigorous growth can be managed without interfering with other plants. It pairs well with coral honeysuckle and cross vine for a succession of flowers attractive to hummingbirds. Keep it well away from smaller plants, garden beds, and property boundaries where its suckering habit will cause problems.
Coral Honeysuckle belongs beside it.
Old growers' knowledge, checked against Trumpet Vine's real companion table below — test any plant you're growing.
Feed it well
Trumpet vine thrives in poor to average soil with a pH of 5.5 to 7.5 and actually flowers better in lean conditions. Rich, fertile soil promotes excessive vegetative growth and suckering at the expense of flowers. Do not amend the soil heavily at planting. A light application of bone meal at planting is sufficient. Avoid nitrogen-heavy fertilizers entirely. If fertilizing is needed, use a high-phosphorus formulation to promote flowering.
Ideal Temperature
Hardiness Zone Compatibility
From seed to harvest, stage by stage
Seed Germination
Trumpet vine seeds require stratification or scarification to break dormancy. When started indoors, seeds germinate in 14 to 21 days at 20-25°C. Seedlings emerge with simple cotyledon leaves before developing their first compound foliage.
Seedling Development
Young plants develop their pinnately compound leaves with 7 to 11 toothed leaflets per leaf. Root systems establish quickly and stems begin to elongate. Growth is relatively slow in the first year compared to established specimens.
Vegetative Vine Growth
The vine enters a vigorous growth phase, producing long flexible stems that can extend 3 to 5 meters in a single season on established plants. Aerial rootlets form along the stems allowing the vine to cling to rough surfaces. The plant focuses energy on vertical growth and canopy expansion.
Bud Formation and Flowering
Trumpet vine typically begins flowering in its second or third year from seed, though plants grown from cuttings may bloom sooner. Flower buds form on new wood in late spring and open sequentially from early summer through early fall. Each cluster produces 4 to 12 tubular flowers in brilliant orange, red, or yellow depending on cultivar.
Seed Pod Development
After pollination, typically by hummingbirds, elongated seed pods form that resemble green beans. These pods grow 8 to 15 cm long and gradually dry and harden through late summer and fall. When mature they split lengthwise to release numerous flat winged seeds that can disperse by wind.
Dormancy and Winter Rest
Trumpet vine is deciduous and drops all its leaves in autumn after a brief period of yellow fall color. The woody stems and aerial rootlets remain attached to their support structure through winter. The plant enters full dormancy and can tolerate temperatures well below freezing in USDA zones 4 through 9.
Soak seeds in warm water for 24 hours before sowing to soften the hard seed coat. Cold stratification for 60 days in the refrigerator significantly improves germination rates.
Caring for Trumpet Vine month by month
What to do each month for your Trumpet Vine
July
You are hereNo specific care tasks for this month.
Harvesting Trumpet Vine
Trumpet vine flowers can be cut for large, dramatic arrangements when the first trumpets in a cluster have opened. Place stems in warm water immediately after cutting. The brilliant orange-red flowers last three to five days in a vase. The long, bean-like seed pods that follow flowering can be left for winter interest or removed to prevent self-seeding. The flowers produce no significant fragrance but their visual impact and hummingbird attraction are unmatched among native climbers.
assuming you sow when the window opens — set your real date
Pick Trumpet Vine promptly and the plant keeps producing.
Storage & Preservation
Trumpet vine requires no special storage considerations as it is fully hardy and deciduous. For propagation, root cuttings taken in late autumn are the most reliable method, as this vine produces abundant suckers from its spreading root system. Simply dig up sucker shoots with roots attached and transplant. Hardwood cuttings taken in winter root easily. Seed pods can be collected in autumn and seeds cold-stratified for spring sowing.
What goes wrong — and the fix
Powdery Mildew
PestWhite, powdery coating on leaves during hot, humid conditions in late summer. Affected leaves may yellow and drop prematurely.
Leaf Spot
DiseaseBrown or dark spots on leaves that may enlarge and cause premature defoliation in wet seasons.
Whiteflies
PestTiny white flying insects on leaf undersides, sticky honeydew, yellowing foliage. Clouds of insects when branches are disturbed.
Troubleshooting Common Problems
The overwhelming challenge is controlling the aggressive spreading by root suckers, which can appear in lawns, gardens, and through pavement far from the parent plant. Install root barriers at planting time or choose a location surrounded by paving or mowed lawn where suckers can be managed. Failure to flower is almost always caused by over-fertilization or excessive shade. Contact with the leaves and flowers causes skin irritation in some sensitive individuals.
Growing Tips
- Plant trumpet vine in full sun with at least 6 hours of direct sunlight daily for the best flower production. Plants grown in partial shade will produce abundant foliage but significantly fewer blooms.
- Install a root barrier made of heavy plastic or metal edging buried 60 cm deep around the planting area to prevent underground runners from spreading into garden beds and lawns.
- Prune aggressively in late winter by cutting all lateral branches back to 2 to 3 buds from the main framework. Trumpet vine blooms on new wood, so hard pruning actually increases flower production.
- Avoid high-nitrogen fertilizers which promote excessive leafy growth at the expense of flowers. A single application of balanced slow-release fertilizer in early spring is sufficient for most soils.
- Choose your support structure carefully before planting. Trumpet vine aerial rootlets will damage wooden siding, shingles, and soft mortar. Use freestanding arbors, metal trellises, or concrete walls instead.
- Remove root suckers as soon as they appear by digging them out completely rather than just cutting them at ground level. Cut suckers will regrow multiple shoots from the remaining root piece.
- Water deeply but infrequently once established, about 2.5 cm of water per week during dry summer periods. Overwatering promotes root rot and excessive vegetative growth.
- Wear long sleeves and gloves when pruning or handling trumpet vine, as the sap and foliage can cause contact dermatitis similar to poison ivy in sensitive individuals.
- If your trumpet vine fails to bloom, the most likely cause is too much shade, too much nitrogen fertilizer, or insufficient winter pruning. Correcting all three issues usually results in abundant flowers the following season.
- Propagate easily from 15 cm hardwood cuttings taken in late fall, root cuttings dug in winter, or by transplanting suckers that emerge around the base of established plants in spring.
Pick your Trumpet Vine
Flava
A selection with clear yellow trumpet flowers instead of the typical orange-red, slightly less vigorous but equally attractive to hummingbirds.
Madame Galen
A hybrid (C. x tagliabuana) with larger, salmon-orange flowers and a somewhat less invasive habit than the pure species.
Tangerine Beauty
Vibrant tangerine-orange flowers on a moderately vigorous vine, considered one of the best selections for garden use.
Atomic Red
Deep red-orange flowers that are darker and richer in color than the species, a striking selection for warm walls.
Trumpet vine is one of the most cost-effective landscape plants available. A single cutting or small nursery plant typically costs 5 to 15 dollars and will cover a large structure within 2 to 3 years without additional purchases. Its vigorous suckering habit means you can propagate unlimited new plants from root cuttings at no cost. When grown on south or west-facing walls and arbors, the dense summer canopy provides natural cooling shade that can noticeably reduce air conditioning costs. The plant requires minimal fertilizer, rarely needs pesticides, and its extreme cold hardiness eliminates any risk of winter replacement costs in zones 4 through 9.
Quick recipes
Trumpet Vine Hummingbird Garden Nectar Station
30 minutesCreate a dedicated hummingbird attraction zone by pairing trumpet vine with complementary nectar-rich plants. This garden recipe maximizes pollinator visits by combining trumpet vine with bee balm and cardinal flower to provide continuous bloom from early summer through frost.
5 ingredients
Trumpet Vine Privacy Screen Planting Plan
2 hoursUse trumpet vine's vigorous growth to create a living privacy screen along a fence or between properties. This garden design project harnesses the vine's natural climbing habit and dense summer foliage to block unwanted views while providing a stunning display of orange flowers.
5 ingredients
Pressed Trumpet Vine Flower Botanical Art
15 minutes active plus 2 to 3 weeks dryingPreserve the stunning trumpet-shaped flowers for use in botanical art, greeting cards, or framed displays. The vibrant orange flowers retain much of their color when properly pressed and dried, making beautiful natural craft materials.
5 ingredientsWhat's inside
Health Benefits
- Trumpet vine is not consumed as food or medicine in modern practice, but its ecological health benefits are significant as it supports pollinator populations, especially hummingbirds.
- Dense trumpet vine plantings provide cooling shade on arbors, pergolas, and building walls, reducing ambient temperatures and lowering summer cooling costs by up to 10 percent.
- The vigorous root system helps stabilize soil on slopes and embankments, reducing erosion and improving watershed health in its native range.
- Trumpet vine flowers provide essential nectar for ruby-throated hummingbirds, large carpenter bees, and various butterfly species, supporting local biodiversity and pollination networks.
- As a deciduous vine, it allows winter sun through when leaves drop while providing dense summer shade, making it ideal for passive solar design on south-facing structures.
- Growing trumpet vine on garden structures encourages outdoor time and connection with nature through the daily spectacle of visiting hummingbirds and other wildlife.
Where Trumpet Vine comes from
Campsis radicans, commonly known as trumpet vine, trumpet creeper, or cow-itch vine, is a vigorous deciduous woody vine native to the southeastern United States. Its natural range extends from New Jersey and Pennsylvania south to Florida and west to Texas, Illinois, and Missouri, where it grows in woodland edges, thickets, fence rows, and along riverbanks. The species was among the earliest North American ornamental plants brought to Europe, with records of its cultivation in English gardens dating to 1640. French botanist Joseph Pitton de Tournefort first described the genus, and the name Campsis derives from the Greek word kampsis meaning curvature, referring to the curved stamens within the flowers. Trumpet vine quickly became a prized ornamental throughout temperate Europe and has since naturalized in parts of southern Europe, particularly in Italy, Spain, and southern France where the Mediterranean climate suits it well. In its native habitat, the plant plays a critical ecological role as a primary nectar source for ruby-throated hummingbirds during the summer months. Various Native American peoples, including the Cherokee, used parts of the plant medicinally, preparing leaf poultices for inflammatory skin conditions. The closely related species Campsis grandiflora is native to China and Japan, and hybridization between the two species produced the popular garden hybrid Campsis x tagliabuana, named after the Italian brothers who first crossed them in the mid-nineteenth century at their nursery near Milan. Throughout American horticultural history, trumpet vine has held a dual reputation as both a spectacular flowering ornamental and a potentially invasive garden thug, capable of sending underground runners many meters from the parent plant and climbing aggressively into tree canopies if left unchecked.
Trumpet Vine: did you know?
Fascinating facts about Trumpet Vine
Trumpet vine is native to the southeastern United States and was one of the first North American plants to be introduced to European gardens, arriving in England by 1640.
Trumpet Vine questions, answered
When should I plant Trumpet Vine?
What are good companion plants for Trumpet Vine?
What hardiness zones can Trumpet Vine grow in?
How much sun does Trumpet Vine need?
How far apart should I space Trumpet Vine?
What pests and diseases affect Trumpet Vine?
How do I store Trumpet Vine after harvest?
What are the best Trumpet Vine varieties to grow?
What soil does Trumpet Vine need?
Why is my trumpet vine not flowering?
Is trumpet vine invasive and how do I control its spread?
Will trumpet vine damage my house or fence?
Can trumpet vine cause a skin rash?
How fast does trumpet vine grow?
What wildlife does trumpet vine attract?
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From the “When to plant” sectionDrag-and-drop bed planner
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From the “Growing guide” sectionCompanion conflicts, caught early
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From the “Companions” sectionReminders you'll actually act on
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From the “When to plant” sectionA record that gets smarter
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From the “Overview” sectionPlant these alongside Trumpet Vine
More Climbing Flowers
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