Companion Planting Chart

Companion planting puts the right neighbours together — some plants deter each other's pests, attract pollinators or improve growth, while a few are best kept apart. Use this quick chart for common UK crops to plan a healthier, more productive plot.

Crop	✔ Grows well with	✘ Keep apart from
beet	bulb onion lettuce	Pea runner bean
bulb onion	beet carrot lettuce strawberry	Pea runner bean
carrot	bulb onion Chives lettuce Pea runner bean sage tomato	dill Florence fennel
Courgette	Borage marigolds Pea Pot Marigold runner bean Sunflower	potato
lettuce	beet bulb onion carrot Pea Pot Marigold runner bean strawberry	—
Pea	carrot Courgette lettuce potato Pumpkin Sunflower	beet bulb onion Chives
potato	marigolds Pea Pot Marigold	Courgette Florence fennel Pumpkin tomato
Pumpkin	Borage marigolds Pea Sunflower	potato
runner bean	carrot Courgette lettuce Sunflower	beet bulb onion Chives
strawberry	Borage bulb onion lettuce sage	—
tomato	Borage carrot Chives great basil marigolds Pot Marigold	Florence fennel potato

How to use companion planting

Mix it up. Interplanting crops and flowers makes it harder for pests to find and spread between their target plants.
Invite the good guys. Marigolds, pot marigolds and sunflowers draw in pollinators and predatory insects that keep aphids and other pests down.
Mind the clashes. A few pairings compete or share pests — the "keep apart" column flags the common ones to separate across the plot.
Rotate each year. Companion planting works alongside crop rotation, not instead of it — move your crop families to fresh ground annually.

A practical planning guide based on widely-used UK companion-planting practice — results vary with your soil, site and season.

Planting calendar → · Pest & problem solver → · Browse vegetables →