How to: Chillies

How to: Chillies

Chillies are a popular addition to many dishes, adding a hint of spice to a variety of cuisines. 

But for those living in the UK, growing chillies can be a bit of a challenge due to the temperate climate. Fortunately, there are a few tricks and tips to help get you growing chillies in the UK. With the below tips, you should be able to successfully grow chillies in the UK. So get out there and start growing your own chillies!

Planting

Not all chillies are suited to the UK climate. Look for varieties that are specifically suited to temperate climates, such as jalapeno, cayenne, and Hungarian wax peppers.


It’s best to start your chilli plants indoors in the spring, as they will need some protection from the cooler temperatures. Place your chilli plants in a sunny spot, and make sure they have plenty of water and fertilizer.


Once the weather warms up, it’s time to move your chilli plants outdoors. Make sure to choose a spot that gets plenty of sunlight and is sheltered from strong winds. Plant your chilli plants in well-drained soil and give them plenty of water and fertilizer.


  1. Purchase seeds or starter plants from your local nursery or online.

  1. Prepare your planting area by adding soil amendments such as compost, peat moss, and aged manure.

  1. Plant your chilli seeds or starter plants in a sunny location.

  1. Water your chillies regularly and deeply, but avoid over-watering.

  1. Fertilize your chillies every two weeks with a balanced fertilizer.

  1. Prune your chilli plants regularly to promote new growth and to remove any diseased or dead branches.

  1. Control pests and diseases by using organic pest control methods such as companion planting, crop rotation, and releasing beneficial insects.

  1. Harvest your chillies when they are ripe and enjoy the fruits of your labour!

Types of chillies you can grow

There is a huge variety of chillies which you can grow in your allotment. Here are some examples!

Jalapeno

Jalapeno chillies are an easy to grow variety of chilli pepper that are very popular in Mexican cuisine. They are quite spicy and can be used to add a kick of flavour to dishes. Growing jalapeno chillies requires warm temperatures and lots of sun, but they are relatively easy to care for and produce a high yield of chillies. The flavour of jalapeno chillies is spicy and earthy, with a hint of sweetness.

Cayenne

Cayenne peppers are relatively easy to grow in warm climates and can be started indoors if necessary. The peppers can be grown in the ground or in containers and should be planted in well-draining soil in a sunny spot. They need regular watering and should be fertilized every two to three weeks. Cayenne peppers have a sharp, spicy flavor that can range from mild to hot, depending on the variety.

Hungarian Hot Wax

To grow Hungarian Hotwax peppers, start the seeds indoors 6-8 weeks before the last frost. When the plants are big enough, transplant them into a sunny spot in your garden. Water them regularly and add some fertilizer every few weeks to ensure they grow to their full size. When the peppers are bright yellow and just starting to turn red, they are ready to be harvested. Hungarian Hotwax peppers have a sweet, mild flavor and are a great addition to many dishes.

Fresno

Fresno peppers are a great addition to any garden and are easy to grow. Plant your peppers in a sunny spot and water them regularly. For best results, fertilize the soil before planting and provide ample drainage. Once your peppers start to grow, you can harvest them when they are about 3-4 inches long and are bright red in color. They have a mild heat with a slight sweetness, making them a great addition to any dish.

Banana Pepper

To grow banana peppers, start by planting pepper seeds in a pot filled with nutrient-rich soil and place the pot in a warm, sunny location. Water the seeds regularly and fertilize them every few weeks. Once the peppers start to grow, provide them with support by tying them to stakes or cages. Harvest the peppers when they are bright yellow or orange in color. Banana peppers have a sweet, mild flavor and are often used in salads and sandwiches.

Serrano

Serrano peppers are a great choice for those looking for a bit of heat in their dishes. To grow them, start with seeds or seedlings and plant them in a sunny spot with well-draining soil. Water the plants regularly and fertilize once a month. Once the peppers reach full maturity, they can be harvested and enjoyed! Serrano peppers are typically quite hot and have a bright, spicy flavor.

Habanero

Habanero peppers are a type of hot pepper that require a long growing season and warm temperatures to reach their full potential. They should be planted in well-draining soil in an area that receives full sun. Habanero peppers are typically harvested when they are bright orange and are known for their spicy flavor and intense heat. The peppers can range from sweet and mild to very spicy, depending on the variety.


Problem solving

Chillies can be a great addition to any dish, but they can also bring with them some problems when trying to grow them. I'm going to tell you how to deal with the most common issues that come with chillies and how to overcome them

Soil

Chillies require well-drained, nutrient-rich soil in order to thrive; poor quality soil can lead to less productivity. It's best to use a loamy soil with lots of organic matter for optimal growth.

Fungal diseases 

Lack of air circulation can lead to fungal diseases and can cause the chillies to become overcrowded. To ensure good air circulation for chillies, be sure to provide adequate spacing between plants when planting and regularly check for signs of overcrowding, as well as provide adequate ventilation in the growing area.

Pollination

Chillies need to be pollinated in order to produce fruit, so not enough pollinators such as bees can prevent fruit production. To ensure that chillies get pollinated well, it is important to grow multiple varieties of chillies in the same garden, as different varieties require different types of pollinators. Additionally, planting a variety of flowers nearby will attract beneficial insects that can pollinate the chillies. 

Watering

Watering chilli plants is an important part of keeping them healthy and productive. The best way to water them is to provide deep, infrequent waterings. This helps to encourage the plant’s roots to grow deeply into the soil, allowing them to access more moisture and nutrients. When watering, it is important to avoid overwatering as this can cause root rot. It is also important to water in the morning so that the leaves have time to dry off before nightfall, preventing fungal diseases. Additionally, adding a layer of mulch around the plants can help to conserve moisture and prevent weeds from competing for water and nutrients. Finally, always monitor the soil moisture and water when the top inch of soil is dry.

Temperatures

The UK climate can be unpredictable, so it’s important to protect your chilli plants from cold weather. Cover your chilli plants with a blanket or frost cloth if temperatures drop below 5°C.

Pests

Chilli plants in an allotment can attract a range of pests, such as aphids, spider mites, and whiteflies. These pests can damage the plant by sucking the sap from the leaves and stems, which can lead to stunted growth and discoloration. To avoid these pests, it is important to keep the allotment clean and free from weeds, as these can provide a haven for pests. It is also beneficial to inspect the plants regularly for signs of infestation and to treat any infestations quickly with an appropriate insecticide.

FAQs 

Do chillies need support like tomatoes?

Some chilli varieties can grow quite tall, so it’s a good idea to provide some support for your plants. Staking the plants or using a trellis can help them stay upright and prevent them from toppling over.

What is the best time to plant chilli peppers in the UK?

The best time to plant chilli peppers in the UK is usually late April to early May, when the last of the frosts have passed. However, if you have a heated greenhouse, you can start planting chilli peppers as early as February.


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