Aromatic Plants
ITALIAN HELICHRYSUM Helichrysum italicum The Living Gold of the Mediterranean
Key Properties
Introduction
Italian Helichrysum (Helichrysum italicum) yields an essential oil. Nicknamed living gold of the Mediterranean maquis, this plant with golden flowers that never fade produces an essence.
Species
| Binomial | Helichrysum italicum |
|---|---|
| Accepted name | Helichrysum italicum (Roth) G.Don |
| POWO status | accepted |
| Family | Asteraceae |
| IPNI identifier | urn:lsid:ipni.org:names:212898-1 |
Source: Govaerts R. (ed.), World Checklist of Vascular Plants (WCVP), Royal Botanic Gardens, Kew, accessed on 21/09/2026.
🌍 General Information
Botanical Identity & History
- 🌍 Mediterranean geographical origin: • Corsica (France): Terroir of excellence, legendary quality, wild maquis • Croatia (Dalmatia): Booming production, remarkable quality • Sardinia (Italy): Original habitat, preserved biotopes • Balkans (Bosnia, Montenegro): Emerging quality sources • Climate conditions: Dry maquis, rocky calcareous soils • Optimal altitude: 200-800m, full south exposure, intense sunlight
- 🌿 Botanical characteristics: • Family: Asteraceae (Compositae) • Scientific name: Helichrysum italicum (Roth) G. Don subsp. italicum • Type: Perennial subshrub (30-60cm) • Foliage: Evergreen, silvery linear leaves • Flowering: May-August, golden capitula in corymbs • Unique feature: Flowers that never wilt, hence the name “Everlasting”
🏛️ Cultural Heritage
- 🏺 Ancient traditions: • Ancient Greece: Wreaths for heroes and offerings to the gods • Symbolism: Immortality, eternal memory, divine sun
- 🌍 Modern renaissance: • Scientific discovery: 1990s, studies on italidiones • French aromatherapy: Pioneering work by Pierre Franchomme • Demand explosion: 2000s, worldwide enthusiasm • Biotope protection: Regulation of wild harvesting in Corsica • Sustainable cultivation: Development of organic plantations across the Mediterranean
🔬 Chemical Composition
Major Active Compounds
- 🌿 Italidiones (5-20%): • Specificity: Molecules exclusive to Helichrysum italicum
- 🌸 Neryl acetate (25-45%): • Olfactory profile: Warm, honeyed and herbaceous notes
- 🌲 Curcumenes and γ-curcumene (5-15%): • Research: Structural analogy with curcumin
- 🌺 α-Pinene and limonene (5-12%): • Olfactory profile: Fresh and resinous notes
Active Molecular Families
- 🌸 Esters (40-60%): • Main compounds: Neryl acetate, neryl propionate • Olfaction: Responsible for warm, honeyed notes
- 🌿 Diterpene ketones (5-20%): • Main compounds: Italidiones I, II and III • Specificity: Unique in the plant world
- 🌲 Sesquiterpenes (8-18%): • Main compounds: γ-curcumene, ar-curcumene, β-caryophyllene
- 🌊 Monoterpenes (8-15%): • Main compounds: α-pinene, limonene, myrcene • Olfaction: Fresh, resinous top notes
⚗️ Extraction Methods
Harvesting & Distillation
- 🌻 Harvesting process: • Optimal timing: Full bloom, June-July • Harvesting time: Morning after dew evaporation • Selection: Flowering tops only • Method: Manual or semi-mechanical cutting • Floral yield: 800-1200 kg of plants per hectare
- ⚗️ Distillation parameters: • Method: Steam distillation • Temperature: 100-105°C, low pressure • Duration: 1.5-3 hours for complete extraction • Yield: 0.05-0.15% (very low, hence the high price) • Ratio: 1000-1500 kg of plants for 1 kg of essential oil
- 🌍 Terroirs of excellence: • Corsica (Balagne, Cap Corse): Wild maquis, exceptional quality • Croatia (Hvar, Brač): Dalmatian islands, ideal conditions • Sardinia: Preserved biotope, ancient traditions • Provençal cultivation: Organic development underway • Ideal conditions: Calcareous soil, summer drought, 2000h sun/year
- 🏺 Storage and maturation: • Containers: Amber glass bottles mandatory • Conditions: 15-20°C, total darkness • Maturation: Chemical profile improvement over time • Shelf life: 5-8 years under optimal conditions • Labeling: Vintage, batch, origin and chemotype
Quality Control & Classification
- 🏆 Premium quality indicators: • Italidiones: 5-20% • Neryl acetate: 25-45% (quality indicator) • Color: Golden yellow to light yellow-green • Scent: Warm, honeyed, spicy, slight curry note
- 🔍 Analytical tests: • GC-MS analysis: Complete chemical profile • Italidione assay: Specific quality marker • Optical rotation: Variable by chemotype • Refractive index: 1.460-1.480 at 20°C • Purity: No dilution or adulteration
⚠️ Important PRECAUTIONS
Safety
- 🌿 Dilution and applications: • Eye and mucous membrane irritation: risk on contact with the eyes and mucous membranes
- 🚫 Absolute contraindications: • Asteraceae allergy: Complete botanical family
✨ Key Takeaways
Summary of Major Benefits
- 👑 Unique excellence: • Exclusive molecules: Italidiones, unique in the plant kingdom