Chillies Companion Planting Guide

What to grow alongside chillies.

January 20, 2024 | 8 min read
Chillies and companion plants in a garden

As a professional gardener based in Staffordshire, with over 15 years of hands-on experience, I often get asked about the best companions for chillies. In our UK climate, chillies can thrive if given the right environment, including the right companions. Let me guide you through the essentials of companion planting for chillies.

Quick Answer

Grow basil, marigolds, and onions alongside your chillies to enhance growth, deter pests, and maximise yield.

Why Companion Planting?

Companion planting is a method used to enhance the growth and health of plants by placing them close to others that benefit each other. It can help with pest control, pollination, and nutrient uptake. In the mild yet unpredictable Midlands climate, strategic companion planting can make a significant difference.

Best Companion Plants for Chillies

Basil

Basil is a fantastic companion for chillies. It helps to repel aphids, spider mites, and mosquitoes, which are common pests in our gardens. Additionally, basil can improve the flavour of your chillies when grown nearby.

Marigolds

Marigolds are known for their pest-repelling properties. They help deter nematodes and other soil-borne pests, which can be particularly troublesome if you're growing chillies in pots or beds. Plus, they add a splash of colour to your garden.

Onions

Onions help to repel insects and pests due to their strong smell. They are also low maintenance and do not compete heavily for resources, making them an ideal companion for chillies.

Planting Calendar

Knowing when to plant your chillies and their companions is crucial for success. Here's a simple calendar to follow:

Month Task Notes
March Start seeds indoors Use a heated propagator if possible
May Transplant outdoors After the last frost
June Plant companions Basil, marigolds, and onions
August Harvest chillies Pick regularly to encourage growth

Additional Tips

To ensure your chillies and their companions flourish, here are some extra tips:

  • Ensure adequate spacing to allow airflow and reduce disease risk.
  • Regularly check for pests and remove them by hand if possible.
  • Water in the morning to reduce evaporation and fungal issues.

Frequently Asked Questions

Can I plant tomatoes with chillies?

Yes, tomatoes can be planted with chillies. They have similar growing conditions and can help with pest control, although they will compete for nutrients, so ensure your soil is rich and well-fertilised.

How much sunlight do chillies need?

Chillies thrive in full sun, requiring at least 6-8 hours of direct sunlight daily. In Staffordshire, choose a south-facing spot for the best results.

What soil is best for chillies?

Chillies prefer well-draining soil rich in organic matter. Amend your soil with compost or well-rotted manure before planting.

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