Late Summer Pollinator Plants for Zone 5: Attract Bees and Butterflies

Publish date: 2026-08-11 · Pillar: Plant Education · Primary keyword: late summer pollinator plants for Zone 5

Meta description: Discover the best late summer pollinator plants for Zone 5 gardens. Support bees, butterflies, and your landscape’s health with Trent’s expert picks.

August in Northern Illinois and Southern Wisconsin is a busy time for bees and butterflies—and for gardeners who care about keeping these hardworking pollinators around. Late summer is when our backyards truly hum with life. When my parents ran their nursery, they always talked about planting with birds and butterflies in mind. These days, as we help folks build their own landscapes, that lesson feels more important than ever: healthy pollinator populations aren’t just good for the environment—they’re what keeps our gardens thriving, year after year.

Why Pollinator Plants Matter in Late Summer

By late summer, many of the spring blooms have faded, but pollinators are still working overtime. Bees, butterflies, and all kinds of beneficial insects need nectar and pollen now more than ever as they gear up for winter (or, for some, a long migration south). If you’re gardening in Zone 5, you’ve probably noticed that August and September can feel like a lull—unless you’ve planned for late-blooming plants.

We get a lot of questions about how to "do your part" for pollinators. Honestly, it’s as simple as planting the right things. When my family was growing up outside Stillman Valley, we saw firsthand how even a backyard bed full of the right perennials could bring in clouds of butterflies and keep our veggie patches producing. Late summer pollinator plants don’t just support wildlife—they boost your whole garden’s health by keeping those natural helpers nearby.

Top Late Summer Bloomers for Bees and Butterflies in Zone 5

Here’s a shortlist of our favorite late summer pollinator plants for Zone 5 gardens—these are tried-and-true bee-friendly plants that hold up to our weather, clay soils, and sometimes unpredictable fall frosts.

Black-eyed Susan (Rudbeckia fulgida ‘Goldsturm’): A classic for a reason. Reliable blooms from July into September, sturdy stems, and a magnet for all kinds of native bees.
New England Aster (Symphyotrichum novae-angliae): One of the last perennials to bloom, with purple flowers that butterflies flock to in September and October. Give asters some space—they’ll spread!
Joe-Pye Weed (Eutrochium purpureum): Tall and statuesque, with mauve-pink blooms that draw in everything from swallowtails to bumblebees. Loves moist soils but adapts to most gardens.
Blazing Star (Liatris spicata): Those purple spikes are butterfly beacons. Liatris is drought-tolerant once established and really shines in clay-heavy soils.
Anise Hyssop (Agastache foeniculum): Fragrant leaves, long-blooming lavender flowers, and a favorite for bees. Plus, the leaves make a nice tea.
Goldenrod (Solidago rugosa ‘Fireworks’ or ‘Golden Fleece’): Don’t be afraid of goldenrod—it’s not the one causing allergies! It’s critical for late-season pollinators and brings a bright gold pop to borders.

Trent’s Tips:

Mix heights and bloom times for a steady buffet from August through frost.
Native varieties tend to be the best perennials for pollinators and the lowest maintenance for us.
Even a small planting—think a few square feet by your mailbox—can make a difference.

How to Plant and Care for Pollinator-Friendly Beds

Late summer is a forgiving time to plant perennials, especially if you keep a few basics in mind:

Placement: Most bee-friendly plants love full sun (at least 6 hours daily), but leave a little afternoon shade for asters and Joe-Pye if your summers get hot.
Soil Prep: Our Northern IL clay isn’t always friendly to plant roots. Loosen the soil, add compost, and don’t worry about making it perfect—most pollinator favorites are tougher than they look.
Watering: New plantings need steady moisture for the first month, even if the forecast calls for rain. A deep soak once or twice a week is better than frequent light watering.
Spacing: Good airflow keeps mildew and disease at bay, especially as the nights start cooling off.

If you’re planting now, mulch lightly (no more than 2 inches) to keep weeds down and moisture in. Just keep mulch away from the base of the stems so you don’t invite rot.

Planning Ahead—Transitioning Pollinator Gardens Into Fall

One of the best things about late summer pollinator plants is how many keep going well into autumn. Here’s how to get the most out of your garden as the seasons shift:

Keep Deadheading: For plants like black-eyed Susan and coneflower, snipping off faded blooms will encourage more flowers (and more visits from pollinators) right into October.
Leave Some Seedheads: As fall rolls in, let a few flowers go to seed. Goldfinches and other songbirds will thank you—and so will next year’s seedlings.
Plan for Layers: Add a few fall-bloomers (like asters or goldenrod) each year so your garden always has something in bloom, even as the days get shorter.
Prep for Spring: Fall is actually the perfect time to plant most perennials. If you’re thinking ahead, order now and get them in the ground before the first hard frost.

With a little planning, your pollinator patch won’t just be a summer showpiece—it’ll be a year-round resource for wildlife and a joy for you, too.

Share Your Pollinator Patch With Us

We’d love to see what’s buzzing around your gardens this summer! Snap a photo of your favorite pollinator plants in action—bees, butterflies, or anything else with wings—and tag us, or send a note if you’re looking for ideas on what to plant next. If you have questions about creating a butterfly garden or want recommendations for late summer bloomers that’ll do well in your yard, we’re always happy to help. After all, growing for wildlife is a tradition we’re proud to keep alive—one garden at a time.