Grevillea Hybrid 'Yamba Sunshine'
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Yamba Sunshine Grevillea
Botanical Name: Grevillea hybrid 'Yamba Sunshine'
Family: Proteaceae
Origin: Australia
Plant Type: Evergreen shrub (large shrub/small tree)
Overview
‘Yamba Sunshine’ is a showy, bird-magnet grevillea with ferny deep-green foliage and abundant large, soft-yellow “spider/toothbrush” blooms—excellent colour for SA gardens with minimal fuss. Plant in full sun for maximum flowering and pollinator activity.
Key Features
- Mature Size: 2.5–4 m H × 2–3 m W
- Growth Rate: 30-50 cm per year under good conditions
- Foliage: Fine, fern-like evergreen leaves; dense, clip-responsive habit
- Flowers: Nectar-rich clusters in soft to golden yellow; large “spider/toothbrush” form
- Seasonal Interest: Late winter–spring peak; many forms flower most of the year in mild sites
- Wildlife Value: Strong draw for honeyeaters, bees and butterflies
- Tolerance: Drought-tolerant (once established), heat-tolerant, wind-tolerant, second-line coastal-tolerant; light frost (protect from hard frost
- Planting Density: Shrub borders: 1 plant per metre (dense) or 1 per 1.5 m for a looser effect
- Pet Friendly: Generally non-toxic; sap/leaves may irritate sensitive skin—discourage chewing
Where It Works Best
- Sunlight: Full sun to light part shade (best flowering in full sun)
- Soil: Well-drained sandy or loam soils; avoid waterlogging; use low-phosphorus native fertiliser
- Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 10–14 days in summer; monthly in winter if dry
- Maintenance: Mulch in spring; tip-prune after flowering to keep compact (avoid cutting into old bare wood)
- Lifespan: 10–20+ years
- Climate Zones: Suited to temperate and Mediterranean SA gardens, including coastal areas
- Soil pH: Slightly acidic to mildly alkaline —tolerates limestone with drainage
Landscape & Design Ideas
- Privacy screening and boundary hedges with a refined finish
- Mass plant for cohesive, low-maintenance colour and bird appeal
- Feature near entries, paths and outdoor living spaces; suitable for large pots with free-draining native mix
Why You Will Love It
A low-water, high-flower performer that lights up the garden with buttery yellow blooms for months, brings in honeyeaters, and stays neat with a quick trim—reliable impact and year-round structure for SA gardens.