Evergreen Ash / Himalayan Ash / Griffith's Ash / Flowering Ash
Botanical Name: Fraxinus griffithii (Evergreen Ash)
Family: Oleaceae
Origin: South & Southeast Asia (India, Sri Lanka to S. China & Indochina)
Plant Type: Evergreen tree
Overview
Evergreen Ash is a fast, elegant shade and screening tree for South Australian gardens. It forms a tidy, rounded canopy of glossy mid-green foliage and produces masses of white, lightly fragrant flower panicles in late spring–summer. Tough, clip-responsive and water-wise once established, it’s ideal for driveways, street-style avenues, courtyard shade and privacy hedging on trunks.
Key Features
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Mature Size: 6–10 m H × 4–6 m W (kept smaller with pruning)
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Growth Rate: 40-80 cm per year under good conditions
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Foliage: Glossy, evergreen mid-green leaves; neat, symmetrical habit
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Flowers: White, lightly fragrant panicles late spring–summer; decorative samaras may follow
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Seasonal Interest: Year-round evergreen structure; spring–summer flower show with fresh flushes of foliage
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Wildlife Value: Flowers offer pollinator interest; canopy provides shade/shelter
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Tolerance: Drought-tolerant (once established), heat-tolerant, wind-tolerant, second-line coastal-tolerant; frost hardy (light–moderate; protect young from hard frost); clay-tolerant with drainage
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Planting Density: Avenue/specimen: 1 tree per 16–36 m² (4–6 m apart), depending on mature canopy
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Pet Friendly: Yes — generally regarded as non-toxic to cats/dogs; any plant ingestion may cause mild tummy upset
Where It Works Best
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Sunlight: Full sun to part shade (best density and flowering in sun)
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Soil: Well-drained loam, sandy loam or improved clay; avoid prolonged waterlogging
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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
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Maintenance: Mulch in spring; formative prune in winter for a balanced canopy; light clip after flowering if shaping; slow-release feed in early spring
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Lifespan: 25–50+ years
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Climate Zones: Suited to temperate and Mediterranean SA gardens, including many coastal suburbs (away from direct salt spray)
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Soil pH: Acid, Neutral, Alkaline — adaptable
Landscape & Design Ideas
- Avenue/driveway planting for fast shade and a uniform look
- Feature/specimen on lawns or courtyards; lifts modern and Mediterranean schemes
- Screening on trunks (raise canopy) to clear sightlines while keeping privacy
Why You Will Love It
A fast, glossy evergreen that delivers cool summer shade, a cloud of white flowers in warm months, and reliable heat/drought performance — a high-value, low-fuss tree for SA streetscapes and family gardens.
