Harvest, Late Honey Flow and Preparing for Fall

September can look like the end of bee season.

It isn’t.

For honey bees and beekeepers in Ontario, September is one of the most important transition months of the year.

Some colonies may still be bringing in nectar from late-season flowers. Honey extraction can continue. At the same time, the hive is beginning to shift its priorities toward winter.

The work changes quickly.

Here’s what is happening inside and around the hive.

Are honey bees still active in September?

Yes.

On warm September days, honey bees can still forage actively wherever nectar and pollen are available.

In southern Ontario, late-season plants such as goldenrod and asters can provide important forage into late summer and early fall. The exact timing varies from year to year because weather, rainfall, temperature, and local plant conditions all affect nectar flow.

That means September can look very different from one season to the next.

This year, we’ve seen a particularly strong late honey flow at Backed By Bees, with bees continuing to bring in resources well into September.

Can honey still be harvested in September?

Yes.

Honey harvest in Ontario can continue into September when colonies have produced harvestable surplus and conditions support a late nectar flow.

Beekeepers do not simply harvest everything in the hive.

Frames are assessed for readiness, colony needs are considered, and honey is removed in stages.

That is why a harvest can continue over several weeks instead of happening on one fixed date.

Why does late-season honey taste different?

Honey reflects the landscape the bees have been working.

Late-season honey may be influenced by different flowers than honey produced earlier in summer.

That can change:

• colour

• aroma

• flavour

• texture

The exact profile depends on the plants available within the bees’ foraging range.

This is one of the reasons raw honey is never completely uniform from one season or even one harvest period to the next.

What is happening inside the hive in September?

While some bees are still foraging, the colony is already preparing for winter.

Brood production begins changing as the season progresses, and the bees that will form much of the winter population begin emerging during this period in southern Ontario.

These winter bees are especially important because they must survive far longer than typical summer worker bees.

September is therefore not simply harvest season.

It is preparation season too.

Why does September matter so much to beekeepers?

The priorities begin to shift.

Earlier in the year, the focus is largely on colony growth, swarming, queen health, and honey production.

By September, beekeepers are increasingly thinking about:

• colony strength

• food stores

• queen status

• pests and disease

• winter preparation

Ontario guidance emphasizes the importance of monitoring colony health and varroa mite levels during late summer and fall because healthy winter bees are critical to overwintering success.

The goal is no longer simply to produce honey.

It is to help the colony enter winter in the strongest possible condition.

Do bees swarm in September?

Swarming is most closely associated with spring and early summer, when colonies are expanding rapidly.

But bees do not always follow neat seasonal rules.

Late swarms can occur.

This week, we were called to Chris Hadfield Public School in Milton after a swarm was discovered on the property.

Late-season swarms present a different challenge than spring swarms because the colony has much less time to establish itself and build adequate stores before cold weather arrives.

When possible, bringing a swarm into managed care allows a beekeeper to assess the queen, colony strength, food stores, and what support may be needed.

What happens after honey is harvested?

Harvest is not the end of the process.

Honey frames are brought in for extraction. The wax caps are removed, honey is spun from the comb, filtered as appropriate, and bottled.

The remaining beeswax can also become the starting point for other products and experiences.

At Backed By Bees, that transition is visible in the experiences we offer.

Summer Bee Encounters give way to fall activities such as:

• honey extraction

• beeswax candle making

• hive-based skincare making

The work changes with the season.

The connection to the hive stays the same.

What else changes on the farm in September?

Beekeeping is only one part of the seasonal shift.

This week, we’ve also been picking apples and pressing cider.

That may seem unrelated to honey at first.

It isn’t.

Both are expressions of the same living system: plants responding to the season, pollinators helping landscapes reproduce, and people harvesting what those systems produce.

September is full of these handoffs.

Flowers become honey.

Wax becomes candles.

Summer experiences become fall ones.

Nature keeps moving.

The lesson of September

September reminds us that change does not always mean something is ending.

Sometimes the work simply becomes different.

For the hive, growth becomes preparation.

For the beekeeper, observation becomes harvest and winter care.

For us, summer experiences become opportunities to explore what the season produced.

Nature connection does not disappear when summer ends.

It changes shape.

Frequently Asked Questions About Bees in September

Are bees still collecting nectar in September?

They can be. In southern Ontario, late-blooming plants such as goldenrod and asters may continue providing forage, depending on weather and local conditions.

Is September too late to harvest honey?

Not necessarily. Some Ontario beekeepers continue harvesting into September when colonies have produced surplus honey and the frames are ready.

What are winter bees?

Winter bees are worker bees produced later in the season that are physiologically adapted to live much longer than typical summer workers and help the colony survive through winter.

Why is fall hive health important?

Colonies need adequate food, healthy populations, a functioning queen, and good pest and disease management heading into winter. Late-summer and fall varroa control is particularly important in Ontario.

Can honey bees swarm in the fall?

Late-season swarms can occur, although swarming is more common earlier in the year. A fall swarm has less time to establish itself before winter.

What happens to bees after honey harvest?

The colony continues preparing for winter. Beekeepers assess health, food stores, queen status, pests, and overall colony strength as the season progresses.