Thai Bird's Eye
Capsicum annuum / frutescens — 50,000–100,000 SHU
Tiny, fierce, and incredibly prolific — the Thai Bird's Eye is the go-to chilli for Thai, Vietnamese, and broader Southeast Asian cooking. A single plant can produce hundreds of small fruits over a long season. They punch far above their weight in heat and flavour, and their compact size makes them one of the best chillies to grow on a windowsill or small balcony.
🔥 Heat Scale
🌱 How to Grow Thai Bird's Eye
6–8 hours daily. Thrives on a sunny south-facing windowsill indoors — one of the best chillies for indoor container growing.
Ideal 22–30°C. Native to Southeast Asia, they love warmth but are more tolerant of variable conditions than many varieties.
Allow top 2 cm to dry between waterings. Bird's Eye chillies prefer slightly drier conditions than bigger varieties — avoid overwatering.
Small plants — 8–12L pot is plenty. Perfect for balconies, windowsills, and small gardens. One plant provides a huge amount of fruit.
Tomato feed every 1–2 weeks from first flower. They're prolific fruiters and need steady nutrition to sustain production.
Well worth overwintering. Cut back, keep above 10°C on a windowsill, and they'll bounce back strongly in spring.
🩺 Common Problems
Cause: Low light, cold draught, or sudden temperature change
Fix: Move to brighter spot, away from cold windows, maintain stable temperature
Cause: Insufficient light or cool temperatures
Fix: Maximise sun exposure, bring outdoors in summer
Cause: Dry indoor air — very common when grown on windowsills
Fix: Increase humidity by misting, apply neem oil spray, improve airflow
Cause: Small pots dry unevenly — roots may stay wet at base
Fix: Ensure drainage holes are clear, allow soil to dry between waterings, use terracotta pots
❓ Common Questions
How hot is a Thai Bird's Eye chilli?
50,000–100,000 SHU — significantly hotter than Cayenne, with an immediate, sharp heat. Small size is deceptive — they're serious chillies.
How many chillies will I get?
A healthy plant produces hundreds of fruits per season. One plant is genuinely enough to supply a household with fresh chillies all summer.
How do I store Thai Bird's Eye chillies?
Freeze whole (use straight from frozen), dry by threading on string or dehydrating, or make into chilli oil. Fresh they keep 1–2 weeks in the fridge.
Are they good for beginners?
Yes — compact, prolific, and rewarding. Great for windowsill growing. The only challenge is keeping up with the harvest.
