Thai Demon
Fast, compact, prolific

Thai Demon Chilli

Thai Demon Chilli

Fast, fiery, dependable:Heat Level: ★ ★ ★ ☆ ☆

Thai Demon is a small-fruited Thai-type chilli grown for sharp, clean heat and sustained cropping. It’s not about pod size; it’s about density and pace.

The pods are short and slender, typically around 2–4 cm long, held upright above the foliage. They ripen from green to a bright, lacquered red and are produced in tight clusters, often covering the plant once it settles into production. Where larger chillies give you handfuls, Thai Demon gives you numbers.

Heat sits firmly in the hot range (commonly cited around 50,000–100,000 SHU). The burn is immediate and direct, without the slow, heavy build of chinense types. That makes it useful in the way Thai chillies are traditionally used — sliced into stir-fries, crushed into dipping sauces, pounded into curry pastes, or dropped whole into broths.

The flesh is thin, so the pods dry quickly and retain colour well, making them suitable for flakes or powder. Fresh, they bring sharp heat without bulk.

Plants are upright, moderately compact and free-flowering. With warmth and good light they crop steadily through a UK summer. It’s a reliable annuum: strong set, repeat fruiting, and little drama.

Thai Demon is a practical cooking chilli — small pods, clear heat, and plenty of them.

Additional Information

Species: Capsicum annuum

Heat Level: Hot – typically cited around 50,000–100,000 SHU. A clean, immediate burn rather than a slow-building heat.

Fruit Appearance: Small, slim, upright pods, usually 2–4 cm long. Ripen from green to bright red and are produced in tight clusters above the foliage.

Flavour Profile: Direct and sharp. Used for heat rather than sweetness; well suited to slicing into stir-fries, broths and pastes, or drying for flakes.

Plant Characteristics: Upright, moderately compact and free-flowering. Once established, plants tend to crop steadily through the season.

Growing Conditions: Prefers warmth and good light. Performs reliably in a sheltered UK summer position or greenhouse. Suitable for pots or beds with regular feeding.

How to Grow Chillies: My free 28-page booklet, "How to Grow Chillies," is included with every plant or seed order to help you achieve a successful harvest.

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World of Chillies was set up by Sarah Hunt in 2011 to promote chilli growing and the enjoyment of everything hot and spicy.

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1. Easy to Grow: Some chillies are just a joy to grow — compact, reliable, and happy in a pot (5). Others shoot off in all directions or sulk at the first sign of wind (1). I’ve given higher scores to the ones that do well here in the UK.

2. Ornamental Quality: A few of these are real show-offs, with pods that look like jewels or dramatic foliage that turns heads. Others are more practical than pretty. This score is just about how good they look on the patio or in the greenhouse.

3. Heat Level: This isn’t a technical SHU score — it’s just a kitchen-friendly 1 to 5. A 1 means very mild (like a jalapeño), a 5 is properly hot (think Bhut Jolokia). It should help you judge what you’re in for!

4. Hardiness: How well do they cope with our unpredictable summers? I’ve given higher scores to the tough ones that keep going through cool nights, wind, or patchy weather without much fuss.

5. Culinary Use: This one’s about how often I actually use them. Some are perfect for pickling, stuffing or powders — others look good but don’t end up in many meals. If it’s flavourful and versatile, it scores high.

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