Campsis radicans Yellow Trumpet - A Vibrant Climber for Bold Summer Colour

Trumpet Vine

Step into the glowing world of Campsis radicans Yellow Trumpet, a fast-growing and spectacular climbing vine that brings architectural interest and vibrant colour to any outdoor space. This radiant cultivar, distinguished by its brilliant yellow trumpet-shaped flowers, offers an irresistible combination of bold aesthetics, vigorous growth, and ease of cultivation. For gardeners seeking long-lasting seasonal colour, pollinator-friendly planting, and a low-maintenance feature for walls, fences, or pergolas, ‘Yellow Trumpet’ is a standout choice.

A cultivated variety of the classic American trumpet vine, Campsis radicans Yellow Trumpet, is prized for its dazzling yellow blooms and hardy climbing habit. Native to the southeastern United States and well-suited to UK gardens, this deciduous climber produces dense foliage and eye-catching flowers, making it a versatile addition to cottage gardens, wildlife-friendly borders, and urban spaces alike.

Known for its ability to cling and climb using aerial rootlets, this cultivar can quickly cover vertical surfaces with abundant, lush leaves and bold blooms. Its adaptability and visual drama make it a popular choice for gardeners aiming to introduce vibrant structure and seasonal interest with minimal fuss.

The defining feature of ‘Yellow Trumpet’ is undoubtedly its radiant flowers. Each trumpet-shaped bloom measures around 7–8 cm long and appears in generous clusters from July to September, brightening the garden during the height of summer. The golden yellow petals offer a cheerful, sunlit hue that stands out beautifully against the green canopy.

The foliage is equally impressive, comprising pinnate leaves with multiple oval-shaped leaflets. These deep green leaves can reach up to 30 cm in length, creating a rich backdrop that allows the yellow flowers to pop more intensely. The bold blossoms and dense greenery provide a dynamic visual impact that enhances both modern and traditional garden designs.

Campsis radicans Yellow Trumpet is celebrated for its adaptability, but it’s best to plant it in a sunny, sheltered position for the most prolific flowering and healthy growth. Full sun encourages abundant blooms and vigorous development, although the plant can tolerate partial shade if necessary.

This trumpet vine is unfussy about soil—whether your garden features loam, sand, or even clay, it will thrive as long as the site is well-drained. Campsis is also reliably hardy, tolerating temperatures as low as -15°C (5°F), making it suitable for much of the UK climate.

To shield the plant from damage in high winds, choose a planting site that offers protection from strong gusts, especially during early growth and flowering stages.

For best results, plant ‘Yellow Trumpet’ in spring or early autumn, when the soil is moist and workable. Dig a hole at least twice the width of the root ball, mixing in plenty of well-rotted manure or compost to improve soil structure and fertility.

After positioning the plant, backfill and water thoroughly to help the roots establish. Campsis is a natural climber, so it’s essential to provide strong support—such as a wall, trellis, pergola, or robust fence—to guide its upward journey. Once settled, the plant will quickly begin to explore its vertical space.

Young plants benefit from regular watering, especially during dry spells, as they settle into their new environment. Once established, Campsis becomes relatively drought-tolerant, though consistent moisture during the growing season will support lush foliage and more prolific flowering.

Apply an annual mulch of organic matter in early spring to conserve soil moisture, suppress weeds, and gradually enrich the soil. Feeding isn’t usually necessary, but a balanced fertiliser in late spring can give an extra boost if growth is sluggish.

As a self-clinging climber, Campsis radicans ‘Yellow Trumpet’ uses aerial roots to attach to surfaces. While this makes it excellent for covering large vertical spaces, regular pruning is required to keep vigour in check and promote flowering.

Prune in late winter or early spring, cutting back the previous year’s side shoots to two or three buds from the main stems. This encourages the formation of fresh flowering wood and helps maintain a neat, compact shape. Use garden ties if needed to guide the plant’s direction and prevent it from overwhelming nearby plants or structures.

Remove dead, damaged, or congested stems regularly to improve airflow and reduce the risk of pests or fungal disease.

While not considered invasive in the UK, Campsis radicans is known for its enthusiasm, and ‘Yellow Trumpet’ is no exception. It can produce suckers and offshoots from its root system, especially in fertile, loose soils. Install underground root barriers or plant in a contained area to prevent unwanted spreading.

Annual pruning plays a key role in managing its growth, and any rogue shoots should be removed promptly to keep the plant tidy and under control.

One of the advantages of ‘Yellow Trumpet’ is its robust health and general resistance to common garden pests and diseases. Occasionally, aphids or scale insects may appear, but can be treated with organic insecticidal soap or by encouraging beneficial predators such as ladybirds.

Fungal issues are rare but can develop in humid or crowded conditions. To prevent problems, thinning out dense growth annually ensures good air circulation.

In addition to its stunning display, Campsis radicans Yellow Trumpet plays a valuable role in supporting wildlife. Its trumpet-shaped flowers are rich in nectar, attracting bees, butterflies, and other beneficial insects throughout the summer months. The dense foliage also offers shelter for birds and insects, making it a brilliant choice for eco-conscious gardeners.

By choosing ‘Yellow Trumpet’, you’re not just adding ornamental beauty but actively supporting your garden’s biodiversity.

The glowing yellow blooms and strong vertical growth of Campsis radicans ‘Yellow Trumpet’ make it a natural focal point in any garden setting. It’s ideal for softening hard surfaces like brick walls, wooden fences, and metal arches, while its fast growth can add seasonal impact to otherwise bare spaces.

For complementary planting, pair with evergreens or pale perennials such as Lavandula, Nepeta, or white Hydrangeas to allow the yellow flowers to shine. In courtyard gardens, it adds height and a tropical touch; in larger borders, it anchors the eye and provides structure.

Campsis radicans ‘Yellow Trumpet’ really earns its keep in my garden. It’s one of those climbers that rewards a bit of early support and shaping with a truly spectacular summer show. I grow mine on a sunny brick wall where the heat helps ripen the wood and boost flowering — by late July, it’s alive with golden blooms and humming with bees. What I appreciate is how little fuss it needs once established. A good prune in early spring keeps it tidy and full of flowers, and any wandering shoots are easily reined in. It’s not just a statement plant — it’s a reliable, hardworking one too. If you’re looking for a climber that brings long-lasting colour and a bit of drama to a vertical space, this one’s well worth making room for.

• Vibrant yellow trumpet-shaped flowers appear from midsummer to early autumn, offering bold seasonal colour.
• Fast-growing, self-clinging climber ideal for covering walls, fences, arches, and pergolas with minimal support.
• Thrives in full sun and well-drained soil; tolerates a range of soil types, including clay, loam, and sand.
• Hardy to -15°C (5°F) – suitable for most UK gardens with a sheltered, sunny spot.
• Requires regular pruning in late winter or early spring to promote flowering and maintain shape.
• May produce suckers and offshoots – manage with root barriers or regular maintenance to prevent spreading.
• Low-maintenance and pest-resistant, with occasional attention needed for aphids or scale insects.
• Supports garden biodiversity by attracting bees, butterflies, and other pollinators.
• Works beautifully in wildlife-friendly gardens, cottage-style borders, and urban courtyards.
• Combines with complementary climbers or flowering perennials to create layered vertical interest.

Campsis radicans Yellow Trumpet is a sensational climbing vine that combines show-stopping yellow flowers, vigorous growth, and wildlife appeal. Its adaptable nature and low-maintenance requirements make it an excellent choice for novice and experienced gardeners.

With some planning and occasional pruning, this golden-flowered climber can transform your vertical spaces into lively, pollinator-friendly features that bloom year after year. Add ‘Yellow Trumpet’ to your garden and enjoy the lasting impact of its sunlit charm.

Explore our full collection of planting guides for expert advice on climbers and wall shrubs.

Want to learn about other climbers? Read about Campsis Indian Summer here.

Q: What makes Yellow Trumpet different from other Campsis varieties?

A: This striking variety produces bright yellow trumpet-shaped flowers instead of orange-red blooms. The clear yellow colour stands out brilliantly against the dark green foliage.

Q: How tall does Yellow Trumpet grow?

A: This vigorous climber reaches heights of 6-10 metres (20-33 feet) when mature. It grows quickly and provides excellent coverage for walls, fences, and pergolas.

Q: When does the Yellow Trumpet flower?

A: The bright yellow blooms appear from late July through to October. Flowering continues until the first frosts, providing a spectacular late-summer display.

Q: What growing conditions does it need?

A: Yellow Trumpet thrives in full sun and sheltered positions. It needs well-drained soil and performs best against a warm wall where it receives maximum sunlight.

Q: How hardy is Yellow Trumpet?

A: This variety withstands temperatures below -15°C (5°F). It grows well in most UK gardens but flowers most prolifically in warmer, southern regions.

Q: What pruning does Yellow Trumpet require?

A: Prune in early spring before new growth starts. Cut back the previous year’s growth to 2-3 buds and remove dead or crossing branches.

Q: How do I support Yellow Trumpet?

A: Install strong wire systems or sturdy trellises before planting. The vine produces aerial roots but needs initial training and support to climb effectively.

Q: Will it grow in containers?

A: Yes, use large containers with good drainage holes. Regular watering and feeding become essential for container-grown plants, especially during the growing season.

Q: What about soil preparation?

A: Add organic matter to the soil before planting. Good soil preparation helps establish strong roots and promotes healthy growth.

Q: Are there any particular maintenance challenges?

A: Watch for late spring frosts, which might damage new growth. Control the spread by removing unwanted root suckers and maintain regular watering during dry spells.