Metrosideros 'Spring Fire'

New Zealand Christmas Bush

Botanical Name: Metrosideros 'Spring Fire'
Family: Myrtaceae
Origin: New Zealand & Pacific Islands
Plant Type: Evergreen shrub (can be trained as a small tree)

Overview

A compact, coastal-ready metrosideros that shines in Adelaide and South Australian gardens. ‘Spring Fire’ produces masses of orange-red “pincushion” bottlebrush flowers from spring into summer, with spot colour outside peak season. Its lime-green new growth matures to deep glossy green, creating a lush, low-maintenance screen or feature that thrives in warmth and sea air.

Key Features

• Mature Size: 2–5 m H × 2–3.5 m W (compact, broad shrub; slower growing than many metrosideros)
• Growth Rate: 30-60 cm per year under good conditions
• Foliage: Lime-green new growth → dark/blue-green mature leaves; in coastal sun and dry spells can show olive/bronze tints on older foliage—adds depth even out of flower
• Flowers: Orange-red, brushy/pincushion clusters mainly spring–summer; attracts nectar-feeders
  
• Seasonal Interest: Spring–summer bloom, lush evergreen structure year-round; attractive seed heads and textured bark through winter
• Wildlife Value: Good for pollinators; attracts bees and nectar-feeding birds
• Tolerance: Coastal-Tolerant (salt & wind hardy), Heat-Tolerant, Drought-Tolerant once established, Light-moderate Frost; suits a range of soils if well-drained
• Planting Density: Shrub borders/hedges: 1 plant per 1 m (dense) or 1 per 1.5 m (looser)
• Pet Friendly: Generally regarded as non-toxic to pets

Where It Works Best

• Sunlight: Full sun to part shade (best flowering in full sun)
• Soil: Well-drained loam or sandy loam; improves heavier clay with organic matter/grit
• Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 10–14 days in summer (weekly in heatwaves); monthly in winter if dry
• Maintenance: Light trim after flowering to keep compact; tip-prune young plants; mulch in spring; use a low-phosphorus/native-safe feed in early spring
• Lifespan: 15-25+ years
• Climate Zones: Suited to temperate & Mediterranean SA gardens, including coastal Adelaide (excellent in second-line coastal sites)
• Soil pH: Slightly acidic to neutral preferred (tolerates mildly alkaline if drainage is sharp)

Landscape & Design Ideas

• Coastal screen or hedge for Adelaide seaside blocks—salt/wind-tough with brilliant spring–summer colour
• Feature specimen in warm courtyards or front gardens—train as a multi-stemmed small tree for year-round structure
• Drought-smart mass planting on hot verges or banks—low clipping needs and reliable seasonal bloom

Why You Will Love It

‘Spring Fire’ gives South Australian gardens the NZ Christmas bush vibe—fiery orange-red flowers in spring and summer, glossy foliage all year, and coastal resilience that suits Adelaide’s climate. It’s tidy, tough and showy, delivering colour and habitat value with very little maintenance.