Thai Demon Seeds
Fast, compact, prolific

Thai Demon Chilli Seeds

Thai Demon Chilli Seeds

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

Thai Demon is a small-fruited Thai-type chilli grown for sharp, direct heat and sustained productivity. It’s valued less for size and more for density of crop.

Pods are short and slender, typically around 2–4 cm long, borne upright above the foliage. They ripen from green to bright red and are produced in tight clusters once plants reach maturity.

From seed, it establishes readily under steady warmth. Plants develop an upright, moderately compact annuum structure and begin flowering early. With consistent feeding and light, they will continue setting fruit through the season.

Heat is commonly cited in the 50,000–100,000 SHU range. The burn is clean and immediate rather than slow-building. Thin-walled pods dry efficiently and retain colour well for flakes or powder, while fresh pods are suited to slicing into stir-fries, broths and pastes.

A reliable Thai-style chilli with strong germination and steady yield under UK growing conditions.

Additional Information

▶ Packet Contents: Ten seeds per packet.

▶ Species: Capsicum annuum

▶ Heat Level: Typically 50,000–100,000 SHU

▶ Germination: 7–14 days at 24–28°C

▶ Seedling Growth: Upright annuum habit; benefits from strong light and early potting-on

▶ Plant Habit: Tall, branching plants usually 60–100 cm with very heavy fruit set

▶ Fruit Appearance: Slim pods, 7–12 cm, ripening green to bright red

▶ Flavour Profile: Clean, sharp Thai-style heat with a fast bite

▶ Growing Conditions: Thrives in warm, bright sites; suitable for greenhouses, patios or sheltered gardens

▶ Time to Harvest: Approximately 80–110 days from sowing

▶ Origin: Thai-type selection grown widely across Southeast Asia

▶ How to Grow Chillies: Free 28-page booklet “How to Grow Chillies” included with every seed order

Coir Blocks

Classic Hots

Record-breakers

Cooks' Collection

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

UK Company No. 07860204.
VAT reg. 223126942

▶ 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.

Hover or touch to pause carousel