Citronella Plant, Cymbopogon Nardus / Care, Botanical Garden Miami

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Citronella / Cymbopogon nardus

Scientific Name: Cymbopogon nardus
Common Name: Citronella Grass
Family: Poaceae (Grass Family)

🌍 Place of Origin

Native to tropical Asia, particularly Sri Lanka and parts of southern India, citronella grass has long been cultivated for its aromatic essential oils.

🪴 Growing Conditions

• USDA Growing Zones: 9–11

• Soil pH: 5.5–7.0 (well-draining, fertile loam)

• Sunlight: ☀️ Full sun

• Water Needs: 💧 Moderate – appreciates regular watering but not soggy roots

• Drought Tolerance: ⚠️ Moderate – can tolerate brief dry periods once mature

• Indoor Potting: 🪴 Yes, can thrive in large pots with strong light and warmth

• Best Use in Landscape:
  Useful as a border grass, pest-repelling hedge, or container plant near entryways and patios; adds a tropical, textural effect to garden beds.

🌺 Uses & Symbolism

• Essential Oil: One of the primary global sources for citronella oil — widely used in candles, sprays, soaps, and natural insect repellents

• Cultural Use: Traditionally used in Ayurvedic medicine and temple offerings for its fragrance and purification qualities

• Other Uses: Mulch, erosion control, and living insect-repelling borders around garden beds

⚕️ Medicinal Properties & Studies

• Traditional Uses: Used to treat fevers, parasites, infections, and skin irritations

• Modern Findings:

  • Antifungal, antibacterial, and anti-inflammatory effects

  • Essential oil shows efficacy in repelling mosquitoes and some ticks

  • May assist in reducing skin redness or minor rashes when diluted properly

• Pharmacological Actions:
  Antiseptic, antifungal, insecticidal, anti-inflammatory

• Vitamins & Minerals: Trace minerals; main value lies in volatile compounds like citronellal, geraniol, and limonene

🐾 Toxicity & Safety

• Toxic to Pets: ☠️ Yes – essential oil (especially undiluted) can be toxic if ingested by dogs or cats

• Insecticidal Properties: 🦟 Strong natural insect repellent – repels mosquitoes, lice, flies, and some mites

• Pollinators: 🐝 Neutral – not especially attractive to bees but doesn't harm them

🌿 Quick Symbols Overview:
☀️ Full Sun | 💧 Moderate Water | 🪴 Pot-Friendly | ☠️ Toxic to Pets | 🦟 Insect Repellent | ⚕️ Medicinal Uses | 🐝 Neutral to Bees

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