How to grow flame vine
Overview
Flame vine is a vigorous evergreen climber with masses of bright orange tubular flowers in winter and spring. It is grown to cover fences, pergolas, and large structures with a dense curtain of foliage and bloom. Key fact: it needs a strong support and full sun to flower heavily.
Soil Preparation
Flame vine prefers slightly acidic to neutral pH (6.0–7.0) and free-draining soil. Before planting, mix in well-rotted compost or aged manure to improve fertility. In heavy clay soils, raise the planting mound or add gypsum and coarse sand to ensure drainage.
Growing Guide
Plant flame vine in full sun with well-drained soil. Dig a hole twice the pot width, improve drainage with gravel if needed, and space vines 2–3 metres apart for coverage. Set the root ball at soil level, water in well, then train the main stems onto a sturdy trellis or wire frame immediately. In cooler zones, wait until after the last frost to plant. Once active growth begins, guide new tendrils regularly to shape the plant.
Care
Feed with a balanced slow-release fertiliser in early spring and again after the main flowering period. Prune hard immediately after flowering to control size and encourage branching; cut back to a main framework every second year to rejuvenate. Remove dead or tangled stems in late winter before new growth starts.
Companion Planting
Flame vine pairs well with other large, vigorous climbers like bougainvillea and star jasmine for a mixed colour display. Avoid planting it near small or slow-growing shrubs, as it can quickly smother them. Use on separate sections of a trellis to keep vigorous species from competing.
Common Pests & Risks
Scale insects may cluster on stems and leaves; treat with horticultural oil or a systemic insecticide in early autumn. Caterpillars occasionally chew foliage; pick off by hand or apply Bacillus thuringiensis if severe. Regular inspection and good airflow help prevent outbreaks.
Troubleshooting
Yellow leaves with green veins: often iron deficiency in alkaline soil; apply chelated iron. No flowers: usually due to insufficient sun or overly rich soil that promotes foliage; prune back and ensure full sun. Leaf drop after cold spell: frost damage; protect with hessian or plant in a warm microclimate. Stunted growth: poor drainage or root competition; improve soil or replant in a raised bed. Sooty mould on leaves: associated with scale honeydew; treat scale first, then wash leaves.