Best Annuals for Pollinators (Easy and Colorful)

Annuals are the quickest pollinator payoff in gardening. Sow them in spring, and within a few weeks you have nectar and pollen blooming for months — exactly the long, steady supply bees, butterflies, and hoverflies need between the flushes of perennials.

Below are the annuals we recommend most often for pollinator gardens, what each one contributes, and the honest trade-offs. Picks are based on flower structure, nectar and pollen value, and the consistent reports of gardeners — not on a single season of testing.

At a Glance: Our Top Picks

• Best for butterflies: Zinnias — big, flat, nectar-rich blooms in every color, blooming from early summer to frost.
• Best for bees: Borage — the quintessential bee flower, with drooping blue stars that honeybees and bumblebees work relentlessly.
• Best for pollen: Sunflowers — native annuals that offer huge pollen loads and late-season seeds for birds.
• Best for tiny beneficials: Sweet alyssum — a low carpet of tiny flowers that parasitic wasps and hoverflies adore.

The Annuals, Reviewed

1. Zinnias — Best for Butterflies

What it is: A warm-season annual with bold, daisy-like blooms on sturdy stems, from compact 12-inch bedding types to 4-foot cutting varieties. They thrive in heat and bloom nonstop until frost.

Who it is for: Gardeners who want color and butterflies. Monarchs, swallowtails, and skippers all visit zinnias, and the single-flowered types are easiest for them to land on and reach.

• Pros: longest bloom season of almost any annual; easy from seed; outstanding cut flowers; drought-tolerant once established.
• Cons: prone to powdery mildew in humid, crowded conditions (space them out); deadheading keeps them blooming; not a native plant.

See zinnia seed mixes on Amazon.

2. Borage — Best for Bees

What it is: A fast, coarse-leaved annual with brilliant blue, star-shaped flowers that hang in drooping clusters. It self-seeds readily and is a famous honey plant.

Who it is for: Anyone who wants maximum bee traffic with minimum effort. Borage flowers for months, and beekeepers consistently describe it as one of the most bee-visited plants in the garden.

• Pros: adored by honeybees and bumblebees; edible flowers; self-seeds so you plant once; tough and drought-tolerant.
• Cons: coarse, sprawling habit (give it room); reseeds enthusiastically — pull seedlings where you do not want them; bristly stems.

Find borage seeds on Amazon.

3. Sunflowers — Best for Pollen

What it is: The classic native annual, from 2-foot dwarfs to 10-foot giants. The big central disks are packed with hundreds of individual florets, each producing pollen and nectar.

Who it is for: Gardeners who want to feed bees through late summer and birds in fall. When the flowers mature, the seed heads are a goldmine for finches and chickadees.

• Pros: native; huge pollen output; supports many bee species; seeds feed birds; dramatic garden presence.
• Cons: tall types need staking or shelter; squirrels will harvest seed heads before birds if they can reach them; some modern pollen-free cultivars are useless to bees — choose pollen-bearing types.

Shop sunflower seed varieties on Amazon.

4. Sweet Alyssum — Best for Tiny Beneficials

What it is: A low, spreading annual smothered in tiny white, pink, or purple flowers with a honey-like fragrance. It is a cool-season annual that blooms in spring and fall and often survives mild winters.

Who it is for: Gardeners who want to attract the small but mighty beneficial insects — parasitic wasps, lacewings, and hoverflies whose larvae eat aphids. It is also an easy edging plant.

• Pros: continuous bloom; attracts beneficial insects reliably; happy in containers and cracks; self-seeds.
• Cons: fades in midsummer heat (shear it back and it returns); flowers are too small for big butterflies; not a native plant.

Browse sweet alyssum seeds on Amazon.

How to Choose

• Prefer single flowers. Doubled and ruffled cultivars often have little or no nectar and pollen — the breeding that makes them pretty empties them for pollinators. “Single” or “open-centered” varieties are the pollinator picks.
• Plant in drifts. A patch of ten zinnias attracts ten times the butterflies of ten scattered singles. Pollinators find flowers by pattern, and a drift is a billboard.
• Stretch the season. Cool-season annuals (alyssum, calendula) cover spring and fall; warm-season annuals (zinnias, sunflowers, cosmos) own summer. Sow both and the nectar never stops. Our seasonal practices guide has the timing for your region.
• Feed the soil lightly. Annuals are hungry but not greedy — a compost top-dressing at planting and again mid-season is plenty. Over-fertilizing grows leaf at the expense of flowers. See our compost application guide for amounts.

FAQ

Why do bees ignore my flower bed?

Usually one of three reasons: the flowers are double cultivars with no nectar, the bed is planted in singles rather than drifts, or there are no blooming flowers for part of the season. Add single-flowered annuals in clusters with continuous bloom, and give bees a few weeks to find the new bed.

Do I need to deadhead annuals for pollinators?

Yes — it is the secret to a long season. Zinnias, cosmos, and calendula keep blooming when spent flowers are removed. If you want seed heads for birds (sunflowers, cosmos), leave the last flush of flowers in place instead of cutting them.

Are any annuals bad for pollinators?

Some are useless — double impatiens, most double petunias, and pollen-free sunflowers produce little or no nectar or pollen. None are harmful, but they waste space if your goal is wildlife. Read seed packets: “single-flowered” and “pollen-bearing” are the labels to look for.

Can I mix pollinator annuals into my vegetable garden?

Absolutely — it is one of the best places for them. Borage and alyssum among the tomatoes attract bees that also pollinate squash and cucumbers, and the flowers lure beneficial insects that hunt pests. Many gardeners interplant for exactly this reason. If you garden in raised beds, our raised bed guide covers interplanting patterns.

Bottom Line

If you have room for only a few pollinator plants, make them annuals: zinnias and cosmos for butterflies, borage and single sunflowers for bees, sweet alyssum for the beneficial insects. Plant them in drifts, keep the singles coming, and deadhead for a nonstop season. They are cheap, fast, and the most reliable pollinator traffic you can buy in a seed packet. Start them indoors or direct-sow after frost — and if you are new to the whole plan, our how-to-start guide ties it together.

As an Amazon Associate, I earn from qualifying purchases.