Cucumbers, like their squash relatives, lean on pollinators to set fruit (outdoor and ridge types especially), so flowers that pull bees in are among their best companions. Beans and peas make excellent partners too, fixing nitrogen into the soil that the hungry cucumber vines feed on, and they climb companionably rather than sprawling into the same space.
Down at ground level, low salad crops make good use of the cool, shaded soil beneath the foliage, and aromatic dill is a long-standing cucumber friend — said to bring in beneficial insects and lovely with cucumber in the kitchen. Keep the one classic clash in mind: strongly aromatic herbs like sage can check cucumbers, so keep those apart.
Grow these alongside
Fix nitrogen the hungry cucumbers feed on, and climb alongside without competing for the same ground.
The traditional cucumber herb — brings in beneficial insects and pairs with cucumber on the plate.
Quick, low crops that use the cool shade beneath the vines and are cropped before the cucumbers take over.
Tall and undemanding — cucumbers can even be trained up it, sharing space like a loose Three Sisters.
Lure aphids and cucumber beetles away and bring in pollinators; they ramble happily nearby.
Keep these apart
Said to check the growth of cucumbers — keep the pungent herbs in a separate bed.
Greedy for the same food and water, and harvesting them disturbs the cucumbers' roots.
Same family, same pests and diseases — give them room so trouble can't spread fast.
Flowers worth tucking in
The blooms that pull pests away and bring in the bees — beauty that earns its keep.
Aphid and beetle trap, plus a pollinator draw.
A bee magnet that lifts pollination and fruit set.
Hoverflies in, aphids down.
Common questions
What grows well with cucumbers?
Beans and peas (they feed nitrogen into the soil), dill (the classic cucumber herb), low salad crops like lettuce and radishes for the shaded ground beneath, and pollinator flowers such as nasturtiums and borage to bring the bees in for good fruit set.
Can you plant cucumbers and tomatoes together?
You can, but it's not ideal — both are hungry, thirsty and want plenty of room and airflow, so together they compete and can crowd each other into disease. If you do grow them side by side (in a greenhouse, say), feed and water generously and keep good space between them.
What should not be planted near cucumbers?
Keep cucumbers away from strongly aromatic herbs like sage that can check their growth, from potatoes that compete for food and water, and from other cucurbits crowded in close, which share the same pests and diseases.
Do cucumbers need flowers nearby for pollination?
Outdoor and ridge cucumbers set better fruit with plenty of bee visits, so pollinator flowers like borage and nasturtiums genuinely help. (Many modern greenhouse varieties are all-female and self-set without pollination — check your seed packet.)
Want the whole picture?
The complete companion planting guide →