Mission / Mission Olive
Botanical Name: OLIVE / Olea europaea 'Mission'
Family: Oleaceae
Origin: Mediterranean
Plant Type: Evergreen shrub (can be kept shrub-sized by clipping)
Overview
A classic, dual-purpose olive that excels in Adelaide and South Australian gardens. ‘Mission’ brings silvery foliage, a neat, shapely canopy and dependable crops for both table fruit and oil. Heat-, coastal- and drought-tolerant once established, it’s superb as a feature, clipped hedge or productive courtyard specimen.
Key Features
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Mature Size: 4–7 m H × 3–6 m W unpruned (easily maintained around 2–3 m by regular clipping)
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Growth Rate: 20-40 cm per year under good conditions
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Foliage: Narrow grey-green leaves with silvery undersides; fresh pale green new growth; may show soft olive/bronze tints in heat or cold snaps
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Flowers: Small, creamy-white sprays in late spring (wind-pollinated)
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Fruit: Green → purple-black olives ripening late summer–autumn in SA; self-fertile, but heavier crops with a polliniser (e.g., ‘Kalamata’, ‘Frantoio’) nearby
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Seasonal Interest: Year-round silver foliage and sculptural branching; spring bloom; autumn fruit; characterful winter silhouette
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Wildlife Value: Light incidental insect interest on flowers; birds may take fruit (netting may be needed)
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Tolerance: Drought-Tolerant (once established), Heat-Tolerant, Coastal-Tolerant (salt & wind), Wind-Tolerant, Frost hardy once established; Clay-Tolerant if well-drained
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Planting Density: Hedge/row: 1–1.5 m apart (clipped). Specimen/avenue: 3–5 m apart
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Pet Friendly: Generally non-toxic; keep pets from olive pits (choking/GI risk)
Where It Works Best
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Sunlight: Full sun (6+ hrs/day) for compact growth and fruiting
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Soil: Well-drained loam, sandy loam or improved clay; thrives on limestone/alkaline soils
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Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 2–3 weeks in summer (weekly in heatwaves); rarely in winter if dry
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Maintenance: Prune after harvest or late winter to shape/open canopy; light summer tip-prune if hedging. Feed in early spring; add dolomite/lime if soil is very acidic
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Lifespan: 50-100+ years
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Climate Zones: Suited to temperate & Mediterranean SA, including coastal Adelaide
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Soil pH: Acid, Neutral, Alkaline (best neutral → mildly alkaline)
Landscape & Design Ideas
- Feature tree for lawns/courtyards—uplight the trunk for a Tuscan look in Adelaide gardens
- Edible hedge/driveway row—clip to 2–3 m for a narrow silver screen with autumn harvest
- Mediterranean grove on hot, dry sites—low-water statement planting that thrives in SA summers
Why You Will Love It
‘Mission’ gives you year-round silver beauty and reliable olives in a tree that loves South Australia’s warm, dry climate. It’s water-wise, long-lived and versatile—perfect for Adelaide backyards seeking both style and substance.
