Introduction

Tecoma capensis (Cape Honeysuckle) is a evergreen climber in the Bignoniaceae family, reaching 6 metres with orange-red flowers in throughout the year in suitable climates. Hardy in USDA zones 9-11.

Tecoma capensis, commonly known as Cape Honeysuckle, is a evergreen evergreen climber in the Bignoniaceae family. The plant reaches 6 metres in height with a spread of approximately 3 metres, climbing by means of a scrambling habit, using long arching stems that hook onto supports. The orange-red flowers appear in throughout the year in suitable climates, providing seasonal colour. The foliage is green, maintaining its colour year-round as an evergreen. Growth rate is fast-growing, capable of adding 1-2 metres of new growth per season. Native to South Africa, this species has become a valued ornamental plant in temperate and subtropical gardens worldwide.

Botanical Description

Classification: Bignoniaceae > Tecoma > capensis. The Bignoniaceae (trumpet vine family) is primarily tropical, with many species producing spectacular tubular flowers attractive to hummingbirds. This species is native to South Africa and was introduced to European gardens from South Africa. The genus Tecoma contains several species, many of which are valued in horticulture for their climbing habit and ornamental qualities.

Climbing Mechanism

Tecoma capensis has a scrambling growth habit, producing long, vigorous stems that lean against and push through neighboring plants and structures. Unlike true climbers, it lacks specialized climbing organs and must be tied to supports for vertical training. The stems may have small thorns or a rough texture that helps them grip loosely. Regular tying-in is essential to maintain the desired form. Can reach 6 metres when supported.

Group Climbing Guide — Tropical Vine

Various — tendrils, twining, or scrambling. Most need sturdy warm-wall support. Protect from wind.

Planting Guide

Step 1 — Site Selection: Choose a position in full sun (6+ hours direct sunlight daily) with well-drained soil. Consider the mature size (6m tall × 3m wide) when selecting the site. Step 2 — Support Installation: Install a fence, post-and-wire system, or open lattice before planting. Ensure the support is rated for the mature weight of the plant. Step 3 — Soil Preparation: Dig a hole twice the width and 1.5 times the depth of the rootball. Mix in well-rotted compost and a slow-release fertilizer. Target pH 6.0-7.0. Step 4 — Planting: Plant at the same depth as the container (except clematis, which should be planted deeper). Water thoroughly and firm in gently. Step 5 — Aftercare: Mulch with 5-8 cm of organic matter. Water regularly during the first growing season. Guide initial stems toward the support using soft ties. Protect from slugs and snails in the early stages.

Climate & Hardiness

Spring: Apply a balanced slow-release fertilizer as new growth begins. Mulch around the base with organic matter. Tie in new stems to supports. Check for winter damage and prune out any dead or damaged growth. Summer: Water regularly — this species requires minimal watering once established; tolerates dry spells. Feed monthly with a liquid fertilizer during the growing season. Continue training and tying in new growth. Deadhead if applicable. Autumn: Reduce watering and feeding as growth slows. Apply a thick mulch to protect roots from winter cold. Check for any pest or disease issues before winter. Winter: Protect from severe frost with horticultural fleece if temperatures drop below -2°C. Check ties and supports. Plan any structural pruning for late winter.

Overwintering Guide

Most need minimum 5–10°C. Move containers inside. Protect wall-grown with fleece. Accept dieback in borderline areas.

Propagation

Stem cuttings (primary method): Take semi-ripe cuttings in mid to late summer (July-August). Select healthy, current season's growth, cutting just below a leaf node. Cuttings should be 10-15 cm long. Remove lower leaves, dip the cut end in hormone rooting powder, and insert into a well-drained mix of perlite and peat (50:50). Place in a propagator or cover with a clear plastic bag. Bottom heat of 18-21°C improves success rates. Roots typically develop within 4-8 weeks. Success rate: 60-80%. Layering (alternative): In spring, select a low-growing flexible stem. Wound the underside lightly, pin it to the ground with a wire staple, and cover with soil. Keep moist. Roots develop over 6-12 months. Sever from the parent plant and transplant the following season. Success rate: 80-90%.

Pests & Diseases

Common Problems

Group Disease & Pest Reference (Tropical Vine)

• Mealybugs — white waxy clusters in leaf axils; use methylated spirit or biological control
• Scale insects — hard brown bumps on stems; scrape off, treat with neem oil
• Red spider mite — common under glass; increase humidity, introduce predatory mites
• Fungal rots — in cold damp conditions; improve ventilation, reduce watering in cool weather
• Whitefly — in conservatories; use yellow sticky traps, introduce Encarsia wasps

Training & Pruning

Pruning timing: Prune after flowering or in early spring. Formative pruning: In the first 2-3 years, focus on building a strong framework of main stems by selecting well-placed shoots and tying them to the support. Remove weak, crossing, or badly-placed stems. Maintenance pruning: Once established, shorten side shoots after flowering to maintain shape and encourage new flowering wood. Remove any dead or damaged growth promptly. Thin overcrowded stems to maintain good air circulation. Training: Tie in new growth regularly throughout the growing season using soft garden twine or plant clips. Spread stems evenly across the support for the best coverage and flowering display. Check ties annually and replace any that are too tight.

Pruning Guide — Tropical Vine

Prune after flowering to control size. Remove dead wood in spring. Thin congested growth for air circulation.

Support Structures

Best support types for Tecoma capensis: Primary recommendation: A fence, post-and-wire system, or open lattice, sized to accommodate the mature height of 6m and spread of 3m. Wire systems: Horizontal galvanized wires at 30-45 cm intervals, tensioned between vine eyes or posts. Ideal for walls and fences. Trellis panels: Choose panels with openings suited to the climbing method — any style, as stems will lean and hook rather than grip. Installation tips: Mount supports at least 5 cm from the wall for air circulation. Use stainless steel or galvanized fittings to prevent rust. Ensure all fixings are rated for the mature weight of the plant, especially in exposed positions.

Support Guide — Tropical Vine

Warm wall with wires, conservatory framework, sturdy trellis. Wind protection essential.

Wildlife Value

Tecoma capensis is highly attractive to hummingbirds, which are drawn to the tubular flowers rich in nectar. The plant also benefits bees, butterflies, and other pollinating insects. The dense foliage provides nesting cover for small birds. Ecosystem services: Provides nectar, pollen, shelter, and nesting sites. The climbing habit creates vertical habitat layers, increasing garden biodiversity.

Landscape Design

Walls and fences: Tecoma capensis is well-suited to covering walls and fences when provided with suitable support structures. Pergolas and arbors: Excellent choice for pergolas, creating a dramatic overhead canopy. Screening: Creates year-round screening when grown on appropriate support. Effective for disguising unsightly structures, dividing garden rooms, or creating private spaces. Feature plant: Makes a stunning focal point when grown on a prominent support structure. Combine with other climbers for a layered, naturalistic effect.

History & Culture

Tecoma capensis has been cultivated in gardens since its introduction from South Africa. Originally from South Africa, it has become valued in horticulture for its ornamental qualities. The genus Tecoma has contributed significantly to the diversity of climbing plants available to gardeners, with species found across multiple continents and climate zones.

Container Growing

Tecoma capensis is not recommended for container growing due to its vigorous root system and large mature size (6m). The plant requires open ground to develop a sufficiently large root system for healthy growth and flowering. If space is limited, consider a more compact cultivar or alternative species better suited to container culture.

Frequently Asked Questions

Seasonal Care Calendar