OLIVE / Olea Europaea 'Kalamata'

Kalamata Olive / Kalamata Olive Tree

Botanical Name: OLIVE / Olea europaea 'Kalamata'
Family: Oleaceae
Origin: Mediterranean (Greece)
Plant Type: Evergreen tree (can be kept shrub-sized by clipping)

Overview

A proven performer for Adelaide and South Australian gardens, ‘Kalamata’ brings classic Mediterranean style with silvery, olive-green foliage and handsome, gnarling trunks over time. Small creamy-white spring flowers are followed by the famous elongated, purple-black olives in late summer–autumn (best with a polliniser nearby). Tough, heat- and drought-wise once established, it’s superb as a feature, grove or clipped hedge.

Key Features

• Mature Size: 4–8 m H × 3–6 m W unpruned; 1.8–3 m if kept clipped in gardens/pots
• Growth Rate: 20-40 cm per year under good conditions
• Foliage: Narrow, grey-green leaves with silvery undersides; new growth fresh, pale green; foliage can show soft olive/bronze tints in high heat or cold snaps
• Flowers: Small, creamy-white sprays in late spring (wind-pollinated)
  
• Fruit: Purple-black ‘Kalamata’ olives late summer–autumn in SA; for reliable crops, plant with another olive cultivar within ~15–20 m
• Seasonal Interest: Year-round silver foliage and sculptural branching; spring bloom; autumn fruit; attractive bark and winter silhouette
• Wildlife Value: Flowers offer light incidental insect interest; fruit may attract birds (net if protecting crops)
• Tolerance: Drought-Tolerant (once established), Heat-Tolerant, Coastal-Tolerant (salt & wind), Wind-Tolerant, Frost Hardy once established (protect young trees); Clay-Tolerant if well-drained
• Planting Density: Hedge/row: 1–1.5 m apart (clipped). Specimen/avenue: 3–5 m apart depending on desired canopy
• Pet Friendly: Generally regarded as non-toxic; avoid pet ingestion of pits (choking/GI risk)

Where It Works Best

• Sunlight: Full sun (6+ hrs/day) for best fruiting and compact habit
• Soil: Well-drained loam, sandy loam or improved clay; thrives on lime/alkaline soils
• 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
• Maintenance: Prune after harvest or late winter to shape and open canopy; light summer tip-prune if hedging. Feed in early spring; add dolomite/lime if soil is very acidic. Consider netting if birds target fruit
• Lifespan: 50-100+ years
• Climate Zones: Ideal for temperate & Mediterranean SA gardens, including coastal Adelaide
• Soil pH: Acid, Neutral, Alkaline (performs best neutral to mildly alkaline)

Landscape & Design Ideas

• Feature tree in lawns or courtyards—uplight the trunk for a Tuscan look in Adelaide gardens
• Edible hedge/row along driveways or boundaries—clip for a narrow, silver screen
• Grove in hot, dry zones for a low-water, Mediterranean statement with autumn harvest

Why You Will Love It

‘Kalamata’ brings authentic Mediterranean character and edible rewards to South Australian landscapes. It thrives in Adelaide’s heat and coastal air, needs little water once established, and looks better with age—delivering year-round beauty and seasonal olives in a single, hard-working tree.