If you’ve ever wondered why your neighbour’s garden looks effortlessly lush while yours struggles, the answer might be hiding in the soil – or more precisely, in how plants work together. Welcome to the world of companion planting!
What is Companion Planting?
Companion planting is the practice of growing certain plants together to boost their health, improve flavour, deter pests, and even increase your harvest. Think of it as matchmaking for your garden – some plants just get along better than others!
Why Does Companion Planting Work?
Nature has a way of balancing itself, and companion planting taps into this by:
- Deterring pests naturally – Some plants act as natural repellents, keeping aphids, slugs, and other troublemakers at bay.
- Boosting growth and flavour – Certain plants release helpful nutrients into the soil, giving their neighbours a tasty boost.
- Improving pollination – Flowers and herbs attract bees and other beneficial insects that help fertilise crops.
- Maximising space – Tall plants provide shade for delicate ones, while ground cover plants reduce weeds and lock in moisture.
The Best Companion Planting Combos
1. Tomatoes & Basil – The Ultimate Duo
Basil isn’t just great for your pasta – it also repels pests like whiteflies and enhances the flavour of your tomatoes.
2. Carrots & Onions – A Smell That Confuses Pests
Carrot flies hate the scent of onions, while onion flies dislike carrots. Plant them together, and your crops will be safer from hungry insects!
3. Beans & Sweetcorn – A Classic ‘Three Sisters’ Combo
Sweetcorn acts as a natural support for climbing beans, while beans enrich the soil with nitrogen, benefiting both plants.
4. Lettuce & Marigolds – A Beautiful but Practical Pair
Marigolds keep aphids and slugs away, while lettuce thrives in the shade they provide. Plus, your garden will look extra cheerful!
5. Cabbage & Mint – A Natural Pest Repellent
Cabbage white butterflies can devastate brassicas, but the strong scent of mint helps keep them at bay. Just be careful, as mint can spread rapidly!
Plants That Shouldn’t Be Planted Together
Just like in life, not all plants make great neighbours. Here are a few pairings to avoid:
- Tomatoes & Potatoes – Both are prone to blight, so keeping them apart reduces disease risk.
- Carrots & Dill – Dill can stunt carrot growth if planted too close.
- Beans & Onions – Onions can slow the growth of beans, so keep them in separate beds.
Top Tips for Companion Planting Success
- Plan your layout carefully – Group beneficial plants together while keeping incompatible ones apart.
- Rotate your crops – Changing plant locations each year helps prevent soil depletion and disease.
- Experiment and observe – Every garden is different, so take notes on what works best in your space.
- Mix flowers and herbs into your vegetable garden – This attracts pollinators and repels unwanted pests.
Ready to Give It a Go?
Companion planting is a natural and effective way to boost your garden’s health without resorting to chemicals. Whether you’re growing veggies, herbs, or flowers, the right plant partnerships can make all the difference. Try a few of these pairings and watch your garden thrive!
If you'd like more advice, remember our Plant Experts at Kings are happy to help.