Helichrysum italicum

Curry Plant / Italian Everlasting

Botanical Name: Helichrysum italicum
Family: Asteraceae
Origin: Mediterranean (southern Europe, north Africa)
Plant Type: Evergreen subshrub / aromatic herb

Overview

Helichrysum italicum is a compact, silver-foliaged aromatic subshrub with a distinctive curry-like fragrance when brushed. Its intensely silver-grey needle leaves and bright yellow button flowers in summer make it as ornamental as it is aromatic. Thriving in hot, dry conditions with excellent drainage, it's perfectly adapted to SA's Mediterranean climate and works beautifully as a border plant, textural contrast and in herb or sensory gardens.

Key Features

• Mature Size: 0.4–0.6 m H x 0.5–0.8 m W
• Growth Rate: Moderate; 15–20 cm per year; compact, bushy and upright with a slightly open habit in shade
• Foliage: Intensely silver-grey, narrow needle-like leaves; strongly aromatic (curry-like); retained year-round
• Flowers: Small, bright yellow button/daisy clusters on upright stems; summer flowering; non-fragrant (flowers); long-lasting as cut or dried flowers
• Seasonal Interest: Silver foliage year-round; yellow flower clusters summer
• Wildlife Value: Flowers attract bees, butterflies and small beneficial insects
• Tolerance: Excellent drought tolerance once established; frost hardy (to −5°C); extreme heat tolerance; wind-tolerant; salt-tolerant; performs in poor, dry soils; does not tolerate waterlogging
• Planting Density: Border/edging: 40–50 cm apart; mass for silver carpet effect: 40 cm centres
• Pet Friendly: Generally non-toxic; the strong aromatic oils may cause mild irritation if large quantities ingested — discourage chewing

Where It Works Best

• Sunlight: Full sun; silver colour and compact habit degrade in shade
• Soil: Excellent drainage essential — sandy, gravelly or rocky soils preferred; tolerates poor, dry and alkaline soils; will not tolerate waterlogging or high humidity around roots
• Water Needs: Establishment: deep soak 2 times/week for 6–8 weeks. Established: deep soak every 3–4 weeks in summer; rarely in winter — one of the most drought-tolerant plants for SA gardens.
• Maintenance: Cut back by one-third after flowering to prevent woodiness and encourage fresh silver growth; avoid cutting into bare old wood; no fertiliser needed in poor soils
• Lifespan: 5–10 years; replant from cuttings to maintain vigour
• Climate Zones: Outstanding for all SA regions — particularly suited to hot, dry inland, coastal and Mediterranean conditions; excellent in Adelaide Hills
• Soil pH: Neutral to alkaline; pH 6.5–8.5; tolerates calcareous soils

Landscape & Design Ideas

• Silver foliage contrast in Mediterranean, cottage and herb gardens
• Dry rockeries and gravel gardens — pairs beautifully with lavender, rosemary and salvias
• Sensory and fragrant garden borders near pathways and seating areas
• Dried flower arrangements — harvest stems before fully open

Why You Will Love It

Intensely silver, wonderfully aromatic and almost indestructible in dry conditions — the curry plant is a Mediterranean garden essential that delivers year-round interest in the hottest, poorest spots in the garden.