Chang Rai Seeds
Thai-Style Heat Burst

Chang Rai Chilli Seeds

Chang Rai Chilli Seeds

Bold heat from Thailand: Heat Level: ★ ★ ☆ ☆ ☆

Chang Rai is one of the most satisfying medium-hot chillies you can grow from seed. It establishes quickly, grows vigorously, and produces long, pendant pods in remarkable numbers — often far more than you expect from a plant its size.

Even in modest pots it remains productive, which makes it an excellent choice for UK growers with limited space.

The chillies begin a bright lime green and develop a clean, sharp flavour that works beautifully sliced raw over noodles, soups, salads, and stir-fries.

As they ripen to red, they become sweeter, juicier, and a touch hotter, with a really good crunch that holds well in cooking. It’s one of those all-rounder chillies you end up reaching for constantly because it suits almost anything you throw it at.

Being a Capsicum annuum, Chang Rai germinates reliably and fruits earlier than most medium-hot varieties. It does well in a greenhouse or polytunnel, but will also perform outdoors in a warm, sheltered spot.

If you want a dependable, everyday chilli with impressive productivity and excellent flavour, Chang Rai is an easy and rewarding variety to grow from seed.

If you’d rather skip the seed stage, I also grow Chang Rai plug plants, ready to pot on and get going quickly.

Chang Rai is also featured in Chilli of the Week.

Additional Information

▶ Packet Contents: Ten seeds per packet.

▶ Species: Capsicum annuum

▶ Heat Level: Typically 5,000–20,000 Scoville Heat Units (SHU)

▶ Germination: 7–14 days at 22–28°C; annuum types germinate quickly and reliably

▶ Seedling Growth: Fast, vigorous seedlings that enjoy strong light and gradual potting-on

▶ Plant Habit: Tall, productive plants (60–90 cm) with long, pendant fruit and excellent yields

▶ Fruit Appearance: Long, slender pods ripening from lime green to bright red

▶ Flavour Profile: Crisp, juicy and fresh when green; sweeter, hotter and fuller-flavoured when red

▶ Growing Conditions: Suited to greenhouses, polytunnels or sheltered outdoor positions in warm summers

▶ Time to Harvest: Approximately 70–95 days from transplanting

▶ Origin: A productive medium-hot variety associated with Northern Thailand

▶ How to Grow Chillies: Includes my free 28-page booklet “How to Grow Chillies” with every seed order

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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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