Teucrium Fruticans
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Bush Germander / Tree Germander / Shrubby Germander
Botanical Name: Teucrium fruticans
Family: Lamiaceae
Origin: Mediterranean basin (S Europe & N Africa)
Plant Type: Evergreen shrub
Overview
Teucrium fruticans is a tough, elegant evergreen that loves Adelaide’s Mediterranean climate. Silvery foliage and soft blue-lavender blooms bring year-round light to borders, coastal gardens and low-water designs. It clips beautifully for hedging or can be left loose and airy; bees adore it and it shrugs off heat, wind and poor soils.
Key Features
- Mature Size: 1.2–2 m H × 1–2 m W (clips smaller as a hedge)
- Growth Rate: 30-50 cm per year under good conditions
- Foliage: Small, opposite leaves—sage-green above, silvery-white beneath for a luminous look
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Flowers: Pale blue to lavender, two-lipped blooms mainly late winter–spring, with spot-flowering into summer/autumn in warm sites
- Seasonal Interest: Year-round silver foliage; heaviest bloom late winter–spring with intermittent colour through warm months
- Wildlife Value: Excellent for pollinators—nectar for bees, hoverflies and beneficials
- Tolerance: Drought-tolerant once established; heat, wind & coastal tolerant; light frost hardy (~–5 °C); tolerates lime/alkaline soils; avoid waterlogging
- Planting Density: Hedges: 2–3 plants per metre (tight hedge 3/m); Specimens: space 1.0–1.5 m apart
- Pet Friendly: Yes — generally regarded as non-toxic; discourage chewing of woody stems
Where It Works Best
- Sunlight: Full sun (best density/flowering); tolerates light part shade
- Soil: Well-drained sandy/loam or improved clay (mound/raise in heavy soils)
- Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 14–21 days in summer; rarely in winter if dry
- Maintenance: Mulch in spring; light clip after main spring flowering to keep compact and trigger fresh silvery growth; a harder late-winter prune every 1–2 years to renovate if leggy; modest feed in early spring
- Lifespan: 15-25+ years
- Climate Zones: Suited to temperate & Mediterranean SA, including coastal suburbs
- Soil pH: Neutral to mildly alkaline preferred; copes with limestone soils
Landscape & Design Ideas
- Silver hedging along drives, paths and coastal boundaries
- Contrast foil for dark greens and burgundies (rosemary, westringia, lavenders, salvias, coprosma)
- Low-water borders, gravel gardens and reflective planting near paving/pools
Why You Will Love It
A luminous silver-green workhorse that looks premium but asks for little—clip once or twice and enjoy months of bee-friendly bloom. Built for Adelaide heat and coastal winds, Bush Germander delivers colour, texture and structure all year with very low water needs.