Pollinating insects — bees, butterflies, hoverflies, and beetles — are essential for food production and wild plant reproduction. With pollinator populations declining, gardeners can make a real difference by planting the right flowers. The key principles are: plant for every season, choose single-flowered varieties, and provide diversity.
Principles of Pollinator Planting
- Aim for year-round flowering. Pollinators need food from February through November. Early and late flowers are especially critical when few other sources are available.
- Choose single flowers over doubles. Breeding has converted many flowers' pollen-producing stamens into extra petals. These “double” blooms look showy but produce little or no pollen and nectar. Single-flowered varieties are far better for pollinators.
- Plant in drifts. Pollinators forage more efficiently when flowers are grouped together. Plant at least 3–5 of the same species in a cluster.
- Include different flower shapes. Long-tongued bumblebees need tubular flowers; short-tongued bees and hoverflies prefer flat, open blooms.
Seasonal Planting Guide
| Season | Key Plants | Pollinators Attracted |
|---|---|---|
| Early Spring (Feb–Mar) | Crocus, snowdrop, winter aconite, pussy willow, hellebore | Early bumblebee queens, honeybees |
| Spring (Apr–May) | Bluebell, apple blossom, dandelion, comfrey, wallflower, rosemary | All bees, early butterflies |
| Early Summer (Jun) | Foxglove, salvia, allium, phacelia, chives, viper’s bugloss | Bumblebees, solitary bees, butterflies |
| High Summer (Jul–Aug) | Lavender, oregano, buddleia, echinops, verbena bonariensis, cosmos | All pollinators at peak abundance |
| Autumn (Sep–Nov) | Ivy, sedum (Hylotelephium), asters, dahlia (single), helenium | Late bees, red admirals, hoverflies |
Top 10 Pollinator Plants
- Lavender (Lavandula angustifolia) — beloved by bees of all kinds; flowers June–August
- Buddleia (Buddleja davidii) — the “butterfly bush”; attracts painted ladies, peacocks, commas, and red admirals
- Ivy (Hedera helix) — often overlooked, but its October flowers provide critical late-season nectar for bees, wasps, and hoverflies
- Foxglove (Digitalis purpurea) — tubular flowers perfectly shaped for long-tongued bumblebees
- Oregano / Marjoram (Origanum vulgare) — tiny flowers produce abundant nectar; attracts more insect species than almost any other herb
- Verbena bonariensis — tall, airy stems with purple flower clusters adored by butterflies
- Phacelia (Phacelia tanacetifolia) — fast-growing annual; one of the highest nectar producers per square metre
- Sedum (Hylotelephium spectabile) — autumn-flowering; buzzing with bees and butterflies in September
- Viper’s Bugloss (Echium vulgare) — a wildflower magnet for bumblebees and solitary bees
- Comfrey (Symphytum officinale) — pendulous bell flowers rich in nectar; long flowering period
Did you know? A single ivy plant in full autumn bloom can support more pollinator species than an entire cottage garden border. Research at the University of Sussex found that ivy is the most important nectar source for UK insects in September and October.
Key Takeaway
The most pollinator-friendly gardens provide flowers from February to November, use single-flowered varieties, plant in grouped drifts, and include diverse flower shapes. Even a window box with lavender, oregano, and a pot of crocus can make a meaningful contribution to pollinator conservation.