Pencil Pine / Italian Cypress
Botanical Name: Cupressus sempervirens ‘Glauca’
Family: Cupressaceae
Origin: Eastern Mediterranean (Italy widely cultivated)
Plant Type: Evergreen conifer / tree
Overview
Cupressus sempervirens ‘Glauca’ (Italian Pencil Pine) is the go-to for fast, elegant privacy in South Australian gardens. Its naturally narrow, blue-green (glaucous) foliage forms tall columns that deliver instant structure with a tiny footprint. Thrives in sunny, well-drained, coastal and Mediterranean sites; ideal for formal avenues, boundary screens and statement pots.
Key Features
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Mature Size: 8–12 m H × 1–1.5 m W (taller long-term)
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Growth Rate: 30-60 cm per year under good conditions
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Foliage: Fine, dense, blue-green/glaucous scale foliage; naturally very columnar
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Flowers: Inconspicuous (pollen cones in spring); small woody seed cones follow
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Seasonal Interest: Year-round colour and architectural verticals; excellent winter structure
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Wildlife Value: Dense cover and nesting for small birds; cones provide seasonal food
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Tolerance: Drought-tolerant (once established), heat-tolerant, wind-tolerant
coastal-tolerant; frost hardy (protect young trees from severe frost)
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Planting Density: Hedges/screens: 0.8–1.2 m centres (closer for quicker fill). Avenues/features: 1.5–3 m apart
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Pet Friendly: Generally non-toxic; sap may irritate skin. Ingestion of foliage can cause mild tummy upset in pets.
Where It Works Best
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Sunlight: Full sun to light part shade (best density and colour in full sun)
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Soil: Well-drained loam or sandy loam; tolerates improved clay loam and alkaline/calcareous soils; avoid 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; clip 1–3× during active growth to maintain shape/width; do not cut into old brown wood; light feed in early spring
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Lifespan: 50-100+ years
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Climate Zones: Suited to temperate and Mediterranean SA gardens, including sheltered coastal areas
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Soil pH: Neutral to Alkaline (tolerates slightly acidic if free-draining)
Landscape & Design Ideas
- Privacy screening and formal boundary lines with a refined Tuscan finish
- Mass plant for avenues and grand entries; low-maintenance vertical rhythm
- Feature near entries, paths and outdoor living spaces; excellent in large pots for a classic, symmetrical look
Why You Will Love It
The ultimate tall, slim evergreen: rapid screening, year-round blue-green colour, superb wind tolerance and minimal pruning — all while using very little ground space. A high-impact, low-fuss classic for SA gardens.
