Sea Spring Seeds

https://seaspringseeds.co.uk/product-category/vegetable-seeds/chilli-seeds/

Sea Spring Seeds specialises in tomatoes and salad crops and promotes ‘Easy Peasy Gardening’ for time-stressed adults, children and anyone without a garden. However, we’re best known for our range of chillies, many that are unique varieties produced through our chilli breeding programme. Dorset Naga, one of the hottest chillies in the world, was developed by Sea Spring Seeds.

JustSeed

https://justseed.com/collections/chilli-seeds

Chilli Seeds - Sweet to Superhot...
There are many chilli varieties to select from including sweeter varieties and those that are on the superhot end of the Scoville Scale. You will also find varieties that make stunning pot plants through the summer.

The earlier in the year you can sow the seeds of chillies the better as they can take a while to get going. Make sure you plant them in a warm spot to get the best germination.

Spices on the Web

https://spicesontheweb.co.uk/a-z-chilli-seeds

I found flavour, I found aroma – I found proper natural food! I am happy to share what I have found and continue to find around the planet so we can all share in the pure delights of Nature’s Bounty.

When we let her do the magic and be patient we get Aroma, we get Flavour, we get Food Satisfaction as we are supposed to be.

World of Chillies

https://www.worldofchillies.com/chilli_seeds/chilliseeds.html

World of Chillies has an extensive range of chilli seeds to suit everyone’s tastes. There is also a range of Chilli Seed Collections to suit most tastes which will save you money. 

World of Chillies stocks a huge range of chilli seeds; over 75 varieties of the world's hottest chillies, prettiest plants, weirdest pods and regional favourites.

Victoriana Nursery Gardens

https://www.victoriananursery.co.uk/Chilli__Sweet_Peppers/

Whilst growing chillies and sweet peppers may be new to many, here at Victoriana we've been fans of everything Capsaicin for over 25 years! Drawing on that passion and knowledge we've brought together a range of chilli seeds, chilli plants and sweet peppers for growing at home or on the allotment. Our selection includes a broad choice of seeds and plants, which produce fruits that range from mild to 'volcanically' hot!