The Best Pollinator Plants for the Vegetable Garden

A pollinator plant is not a luxury in a vegetable garden — it is part of the machinery that fills your plates. When a bee or hoverfly visits a flower it carries pollen from bloom to bloom, and that act of pollination is exactly what turns a courgette flower into a courgette. Feed the insects that do this work, and they will, quite literally, feed you back with a heavier and more reliable harvest.

This guide covers the best flowers to grow for bees and hoverflies in a UK garden, why some flower shapes are far more useful than others, and how to keep something in bloom from the first warm days of spring right through to autumn. It sits within our wider wildlife-friendly garden cluster — the cornerstone guide explains how all the pieces (pollinators, predators, ponds and hedgehog highways) fit together into a more productive plot.

Why single flowers beat double

If you take one idea from this guide, make it this: choose single flowers over double ones.

Plant breeders have bred many ornamental flowers — roses, dahlias, marigolds, begonias — to have extra, frilly petals. They look generous to us, but to a bee those crammed-in petals are a problem. The breeding often replaces the nectar- and pollen-bearing parts with yet more petals, and what little reward remains is buried where a short-tongued bee or a hoverfly simply cannot reach it.

A single flower, by contrast, holds its pollen and nectar out in the open, on an accessible central disc or a simple shallow cup. An open daisy, a single dahlia, a hardy geranium, a poppy — these are landing pads with the food on display.

The same logic applies to colour and scent, but to a lesser degree. Bees see blues, purples and ultraviolet best, so borage, lavender and catmint are reliably busy. But flower shape and accessibility matter far more than colour — a single white flower beats a double blue one every time.

A season-long succession of bloom

One good month of flowers is not enough. Pollinators are active from the first mild days of spring through to the last warmth of autumn, and the hungriest, leanest moments are often early spring (when queen bumblebees emerge) and late autumn (when they are stocking up before winter). Your job is to make sure the table is never bare.

Here is a simple succession that keeps something in flower across the whole UK growing season. You don't need all of it — pick two or three from each window.

Spring (March–May)

The early flush matters more than almost anything, because it feeds queen bumblebees just as they wake and start nests. These will be the workers pollinating your beans and courgettes later on.

• Crocus — among the very first nectar, perfect under fruit trees and along bed edges.
• Pulmonaria (lungwort) — flowers early in shade, beloved of the hairy-footed flower bee.
• Flowering currant (Ribes) — a tough, easy shrub smothered in pink blossom in April.

Many spring bulbs can be tucked into corners where nothing edible grows, so they cost you no cropping space.

Early summer (May–June)

As the weather warms, the workforce builds — and this is exactly when your first fruit-setting crops need them.

• Borage — possibly the single best bee plant you can sow. It self-seeds, flowers for months, and the blue stars are constantly refilling with nectar.
• Comfrey — bumblebees love the nodding bells, and you can cut the leaves for a free liquid feed too.
• Hardy geraniums (cranesbill) — long-flowering, shade-tolerant perennial plants that knit gaps together and ask almost nothing of you.

Midsummer (June–August)

The peak. This is when the most visitors are about and the most veg is flowering, so keep the buffet generous.

• Lavender — a bee magnet in any sunny, well-drained spot; brilliant along a path edge.
• Phacelia — a fast annual you can sow as a green manure and a pollinator strip; hoverflies adore it, and their larvae go on to eat aphids.
• Calendula (pot marigold) — cheerful, edible, self-seeding, and a classic veg-bed companion.
• Single dahlias — varieties like 'Bishop of Llandaff' have open centres alive with bees, unlike the pompom types.

Late summer into autumn (August–October)

The closing weeks are easy to forget, yet they decide how strong next year's pollinator population will be.

• Sedum (now Hylotelephium) 'Autumn Joy' — its flat plates hum with bees and butterflies in September.
• Asters (Michaelmas daisies) — a wave of late nectar just as little else is open.
• Ivy — when it flowers in autumn it is one of the most important late food sources in Britain, supporting the ivy bee and countless hoverflies. Let a patch flower if you possibly can.

Let your herbs and veg flower too

You may already be growing superb pollinator plants without realising it — they are sitting in the herb bed and the salad row.

Most culinary herbs are outstanding for bees once they bloom: chives carry pink pompoms in May, thyme, marjoram, rosemary and sage all flower freely, and basil left to go to flower late in the season is mobbed by bees. The trick is simply to let a few plants flower rather than pinching every bud out. Sow a little extra, harvest most of it, and allow the rest to bloom.

The same goes for vegetables that have finished cropping. When a lettuce runs to seed it sends up a tall spike of small yellow flowers that hoverflies and bees work over eagerly — so a bolted lettuce is not a total loss. (If bolting is catching you out earlier than you'd like, our guide to lettuce bolting explains how to slow it down.) Likewise, leave one or two brassicas — a kale plant, a few oversized rocket plants — to throw up their bright yellow flowers in spring, and you'll create an early-season feast at exactly the lean moment.

This is the same idea, turned around, that drives companion flowers: mixing flowers in among your edibles so pollinators and pest-eaters are always close to the crops that need them.

Where to plant near your crops

Pollinator plants work hardest when they are among the food, not banished to a far border. A bee that lands on borage and then hops straight onto your courgette is doing precisely the work you want.

A few practical placings:

• Bed edges and ends. Ribbon lavender, calendula or hardy geraniums along the edges of beds, where they soften the lines and sit right beside the crops.
• Gaps between crops. Tuck phacelia or borage into a square left after a quick crop like radish; it fills the space and feeds insects until the next sowing.
• Containers. No garden bed? A pot of lavender, a tub of single dahlias or a windowbox of herbs pulls in pollinators just as well — see growing food in containers for the basics of compost and watering. A balcony with a few flowering pots becomes a genuine refuelling stop.
• Under and around fruit. A spring carpet of crocus and pulmonaria beneath apple and cherry trees brings bees right to the blossom they need to pollinate.

Don't worry about neatness. A slightly tumbled, mixed planting — flowers threaded through veg — is more productive than rigid rows, and it confuses pests into the bargain.

Once you've explained to yourself why these plants earn their place, a ready-mixed pollinator seed packet is the cheapest way to fill a strip or a few pots. Sow it on cleared ground in spring and you'll have months of bloom.

Avoiding pesticides

None of this works if you spray. Insecticides do not distinguish between the aphid you dislike and the bee you've spent all season feeding, and even some "organic" sprays harm pollinators and their larvae if used carelessly. The most pollinator-friendly thing you can do, after planting the flowers, is to put the spray bottle down.

The good news is that a garden full of nectar is also a garden full of predators. The hoverflies you drew in with phacelia lay eggs whose larvae devour aphids by the hundred; the ladybirds and lacewings that shelter nearby do the same. Build the habitat and the pest control largely takes care of itself — which is the whole argument of attracting beneficial insects. If aphids do flare up, a blast of water or squashing by hand deals with most outbreaks; our guide to blackfly on beans walks through the wildlife-safe options.

A couple of habits make a real difference:

• Never spray open flowers, and never on a warm day when bees are flying.
• Avoid neonicotinoid-treated and "bug-clear" products near anything in bloom — they linger in pollen and nectar.

Put the two halves together — a long season of single, nectar-rich flowers, and a hands-off approach to spraying — and you've built the engine room of a more productive plot. The bees set your courgettes, beans and tree fruit; the hoverflies and their kin keep the pests in check. For the full picture of how pollinators sit alongside ponds, bird feeders and hedgehog highways, head back to the wildlife garden hub, or browse the whole wildlife gardening section.