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Red Hot Chilli Peppers

Chilli – Did you Know?

From tiny pointed extremely hot, birds eye chilli to the large mild fleshy peppers like the anaheim. Chillis, come in a variety of sizes and shapes, as well as a diverse colour range. Indigenous to Central and South America and the West Indies, they have been cultivated there for thousands of years before the Spanish conquest, which eventually introduced them to the rest of the world.

Today there are probably 400 different chillis grown, and they are one of the most widely cultivated crops today. They come in a variety of different species. 


Easy to Grow… Didn’t you know?

chilli grow room

Chillis are grown as ornamental decorative plants and for their fruits, these can then be harvested when green, for some cuisines, or be left to ripen, mainly to red but some will turn orange, yellow or even chocolate brown depending on variety, this usually takes about another 2 to 3 weeks.

Chillis will grow in similar conditions to tomatoes although better results are achieved in higher temperatures and humidity. Like Tomatoes chillis can be grown in a variety of Hydroponic systems as well as in the ground. With the use of nutrient solutions like Growth Technology’s own Chilli Focus, growers can see some incredible results. Our Chillis in the Growth Technology grow room are coming along nicely (picture left).

Chilli Focus on plants Growth Technology high quailty plant food nutrients growing the best


If you have any questions to growing Chillis contact us on Facebook for some more information!




shutterstock_99689975It may look inviting and colourful, however this chilli is not for the faint hearted. The Dorset Naga is one of the hottest chillis in the world. Its heat level is strongly influenced by growing conditions, so though Dorset Naga fruit will always be extraordinarily hot, there is no guarantee every crop will reach such an astronomical level.

The scorching heat of the fruit is combined with a distinctive fruity aroma, making this a truly exceptional chilli. The wrinkled, wedge-shaped fruit ripen from green to red, and can be harvested at either stage of maturity. They can be up to 20 to 30 mm wide at the shoulders and 40 to 50 mm long, but can be smaller when the plants are grown in pots. Great to grow in your own system at home and challenge yourself to the test!


Dorset Naga –  Sweet 10hot Extremely Hot

Tabasco Chilli- Sweet 7hot Extremely Hot

Jalapeño –        Sweet 5hot Extremely Hot


General Care

Seedlings and young plants can be planted out as soon as they are well established and have roots showing. The appearance of the second true leaves is an ideal sign that plants are ready to be potted out. Plant them in moist compost in small pots (8-10 cm) and make sure that they are well located in the medium so that the bare stem is well covered in compost right up to the first set of leaves.

This will allow the development of new root structures up the stem and add strength to the plant. Depending on the cultivar you may have to pot up the plant again in a few weeks time. Do so when the roots are clearly coming out of the pot.

Once the risk of frost passes you can put the plants outside. Initially you might want to harden them off by placing them outside for just a few hours a day. You can pot them up in big pots or directly into the soil but both chilli and pepper plants need a well drained substrate.

Light and temperature

Chilli plants require much sunlight. In terms of temperature, chilli plants can be treated as half hardy annuals. The temperature requirements may vary according to the cultivar with a minimum 12°C.

Watering and feeding

Water as needed to maintain the growing medium is just moist but not wet. Never let the soil dry out completely. Larger pots require less frequent watering than small pots, pots in full sun light will need more watering than pots that are in light shade for part of the day. A small plant in full sun may need watering every day. When you water, make sure you water deeply so that the water gets down to the roots where the plants need it, rather than just wetting the top

where it will evaporate away. When in their vegetative stage, chillies will benefit from feeding every week, ideally with a specialist feed such as Chilli Focus. When flowers appear the strength of the feed can be increased as well as the frequency.


Pinch out the growing tips occasionally to encourage them to bush out. Plants may need some support from branches pushed in around them or they can be tied to a cane.

Flowering and fruiting

As the plants grow, small, normally white flowers will begin to bloom. The flowers will begin dying after a few weeks and chillies will form. Soon after, the flower’s petals will drop off as the green middle starts swelling, which is the chilli pepper growing. The plant will continue producing fruit into the autumn and perhaps beyond under favourable temperature and conditions. Chillies and peppers can be harvested green or when in colour.

Pests and diseases

Chillies growing in this country are largely trouble free. In very warm, dry conditions they may be attacked by red spider mite (you’ll see very fine webbing and tiny little mites on the underside of leaves). Sometimes aphids can be a problem especially during the early stages of growth. The answer for both of these is to use an organic fatty-acid type spray such as SB Plant Invigorator, which is suitable for use on food crops. This suffocates the pests without damaging the chillies.

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