Thai Basil

Ocimum basilicum var. thyrsiflora

herb

The fragrant Southeast Asian basil with purple-tinged stems, glossy narrow leaves, and an anise-clove aroma quite different from Italian sweet basil. Essential in Vietnamese pho, Thai curries, and stir-fries. More heat-tolerant and slower to bolt than Genovese types.

✅ Plant alongside

Good neighbors that attract beneficial insects or deter pests

• Tomatoes — Repels thrips and whiteflies; traditional companion in Asian gardens
• Peppers — Deters aphids and spider mites
• Eggplant — Provides aromatic pest confusion
• Marigold — Doubles up pest deterrence when planted together

🛡️ Pest & disease prevention

Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide

• Aphids →

  Strong anise scent deters many soft-bodied insects; inspect leaf undersides regularly

• Fusarium wilt →

  Rotate basil to a new bed each year; avoid overwatering; buy resistant varieties

• Japanese beetles →

  The strong aromatic oils discourage feeding compared to Italian types

🌾 Harvest & storage

Harvest stems just above a leaf node to encourage branching. Remove flower spikes as soon as they appear to prevent bolting. Add Thai basil at the very end of cooking to preserve the anise fragrance. Store stems in water like fresh-cut flowers at room temperature.

🥗 Nutrition & benefits

Contains eugenol and estragole — essential oils with antibacterial and anti-inflammatory properties. Good source of vitamins K and A plus magnesium. Particularly rich in antioxidant polyphenols.