Tecomaria capensis, commonly known as Cape Honeysuckle, is a vigorous and attractive plant native to southern Africa. This evergreen species grows as a fast-growing shrub or a climbing vine, adorned with glossy green leaves and distinctive trumpet-shaped flowers. Its vibrant blooms appear in shades of orange, though yellow and red cultivars are also available, adding a striking visual element to landscapes. The plant’s adaptability makes it a popular choice in warmer climates globally.
Essential Care Requirements
Light
Cape Honeysuckle thrives in locations receiving ample sunlight, which promotes abundant flowering. Full sun, meaning six or more hours of direct sunlight daily, leads to the best bloom production. While it prefers bright conditions, Tecomaria capensis tolerates partial shade, especially in regions with intense summer heat. Providing afternoon shade in such environments protects the plant from harsh sun exposure.
Watering
New Cape Honeysuckle plants require consistent moisture and regular watering. Once mature, the plant demonstrates good drought tolerance. For optimal growth and prolific flowering, provide deep, regular watering, about once a week. Ensure the soil dries out somewhat between waterings to prevent waterlogging.
Soil
Tecomaria capensis adapts to a wide range of soil conditions, performing best in well-draining soil. It tolerates various textures, including sandy and clay soils, provided drainage is adequate. If planting in compacted or heavy clay soils, amending with coarse sand improves drainage and supports root establishment. The plant thrives in soil pH ranging from acidic to alkaline.
Temperature and Hardiness
Cape Honeysuckle is a warm-climate plant, hardy in USDA Zones 9 through 11. In Zone 8, it may survive with winter protection like mulching. Foliage and branches can experience dieback when temperatures drop to 25 degrees Fahrenheit (-3.9°C). While it endures short periods down to 20 degrees Fahrenheit (-6.7°C), prolonged cold temperatures cause significant damage.
Fertilization
Fertilizing Tecomaria capensis during its active growing season, spring and summer, supports robust growth and flower production. A balanced fertilizer, such as a 10-10-10 or 15-15-15 N-P-K ratio, is suitable. For liquid or quick-release granular fertilizers, apply every four to six weeks. Slow-release formulations require less frequent application. Always water thoroughly after fertilizing to aid nutrient absorption and prevent root burn.
Pruning and Training
Cape Honeysuckle’s vigorous growth makes regular pruning important for managing its size, shaping, and promoting abundant flowering. This plant can be maintained as a dense shrub, trained as a climbing vine on trellises or fences, or used as a groundcover. Pruning controls its sprawling nature and encourages a more compact form.
The most effective time for significant pruning is late winter or early spring, before new growth emerges and after the last threat of frost. This timing allows removal of winter damage and prepares the plant for a strong growth spurt. Throughout the growing season, lighter pruning can be done after flowering to remove spent blooms and encourage subsequent flushes. Removing dead, diseased, or crossing branches improves air circulation and overall plant health.
Pest and Disease Management
Tecomaria capensis is a resilient plant with resistance to most serious pests and diseases. This robustness contributes to its low-maintenance reputation. However, some issues may arise.
Occasionally, pests like spider mites or whiteflies might appear, especially if the plant is grown indoors or in less-than-ideal outdoor environments. Signs include fine webbing from spider mites or small, flying insects and sticky honeydew from whiteflies. Good air circulation helps deter infestations. For minor outbreaks, physical removal of affected leaves or application of horticultural oil or insecticidal soap can be effective. Environmental factors, such as improper watering or nutrient imbalances, can lead to issues like leaf burn.