Beekeeping Calendar

In this period the colony has settled into its winter population, and this population is now largely fixed. There is natural loss through winter, but new bee production has (in most regions) stopped. Whatever there is enters winter with that number.

The Winter Bee on Duty

The great majority of the bees that entered winter are now winter bees — long-lived (4-6 months), with a thick fat body, programmed to warm the cluster and to feed the first brood in spring. The quality of this generation was determined in the previous periods (pollen feeding + varroa control); it can no longer be changed now. A colony that entered winter with good winter bees comes through; one that entered with poor ones dwindles.

The Halt in Laying

In most regions the queen has completely stopped laying in this period, and the colony is broodless. This is important in two ways: first, the colony is freed from the burden of warming brood and saves energy; second, this broodless period is a golden window for varroa treatment — because varroa can only reproduce and hide in capped brood, when there is no brood all the mites are on the bees, defenceless.

Cluster Population and Heat Balance

A certain minimum mass is needed for the cluster to warm itself. A very small colony (a few frames of bees) cannot warm the cluster adequately and dwindles in the cold — no matter how much stores it has. This is why weak colonies should have been combined in the previous period; combining is generally too late in this period (cold makes it hard for the bees to accept one another).

Natural Loss

Seeing a few dead bees on the landing board in this period is normal — old bees die naturally and the colony carries them out. What is worrying is a large number of dead bees or a pile at the hive front; this may signal disease, poisoning or a serious problem.

Protecting the Queen

The queen at the centre of the cluster is the colony's future. After this period the queen cannot be intervened with; her surviving the winter depends on the health of the cluster. A strong, populous, well-fed cluster can protect the queen through winter; a weak cluster loses both the queen and itself.

In this period internal inspection ends and gives way to external observation. The hive is no longer opened — opening a hive with the cluster formed means dispersing the protected heat in an instant.

No Opening the Hive

Once the cluster is formed, the hive is not opened. This is the strictest rule of the period. An open hive in the cold chills the cluster and can push the colony below the survival threshold. Any curiosity to "just take a look" costs the colony energy it cannot afford.

The Form of Winter Inspection: External Observation

Inspection in this period is done entirely from outside. What can be read externally is surprisingly rich:

• Entrance: A few bees taking a cleansing flight on a mild day is a sign of health.
• Dead bees: A few dead at the entrance is normal; if enough to block the entrance, they should be cleared.
• Sound: Tapping the hive gently and listening — a healthy colony answers with a short hum, silence or a faint sound is a sign of a problem.
• After snow/frost: Make sure the entrance is not blocked by snow.

Weight Follow-up

The most important active "inspection" of the period is weight monitoring. A hive with a scale, or lifted from the back, tells whether stores are running low. If stores are critically low and the weather allows, a single emergency intervention (solid feed placed above the cluster) may be possible — but this is a last resort, not routine.

Minimum Intervention, Maximum Observation

The principle of the period is clear: take your hands off the hive, but do not take your eyes off it. Physical intervention has ended but observation continues. A good beekeeper does not open the hive in winter but walks the apiary on every mild day, checking the flight and the entrance.

Detecting a Dead Colony

In this period it becomes clear that some colonies have not survived the winter. If a dead colony is detected, its cause should be investigated (starvation, damp, varroa, nosema) — this is a lesson for next year. The dead hive should be closed at once and protected from robbing, its combs evaluated or placed under moth/disease control.

In this period liquid feeding has ended. The cold makes it impossible for the colony to process syrup. If at this point the colony is still short of stores, the only option left is solid feeding — and this is an emergency intervention, not planned feeding.

Why No Liquid Feeding

The bee needs warmth and active work to process syrup (evaporate the water, store it). This is not possible with the cluster formed and the weather cold. Liquid syrup given remains unprocessed, raises the hive's humidity and causes harm. So in this period liquid syrup is not given.

Emergency: Solid Feeding

If the last check showed the colony's stores critically low (too low to survive winter), the only option is solid feeding:

• Fondant / sugar dough: Placed directly above the cluster. The bee consumes it on mild days.
• Sugar cake / candy: Similarly, within reach of the cluster.
• Dry sugar: Crystal sugar poured on newspaper (emergency, last resort).

Solid feed must be placed directly above the cluster — the bee cannot travel far in winter, it only moves upward. Feed placed far away is useless; the colony may starve before it can reach it.

Why Solid Feeding Is Rescue, Not Plan

Solid feeding is not part of a good wintering strategy; it is a rescue measure resorted to when sufficient stores could not be built in the previous periods. Healthy wintering is achieved by the colony entering with natural honey + syrup given in good time. Needing solid feeding in this period is a sign that preparation fell short, and it should be a lesson for next year.

Water

In winter the bee meets its water need from condensing moisture and from honey; it also takes water from outside on mild days. There is no need to give separate water in this period. What matters is that the hive's internal humidity is balanced — both too dry (it cannot dissolve crystallised honey) and too damp (condensation, disease) are problems.

In this period the colony is dormant and, thanks to the broodless window, offers the year's most effective varroa treatment opportunity. Meanwhile mice and damp are the winter threats that must have been guarded against beforehand.

The Broodless Window: Varroa's Final Reckoning

The most valuable opportunity of the period is this. When the queen has stopped laying, the colony is broodless — and because varroa can only reproduce and hide in capped brood cells, when there is no brood all the mites are on the bees, defenceless.

A single treatment applied in this broodless window (for example, oxalic acid by trickling under suitable conditions) is far more effective than repeated treatments in the brood period. A single application dramatically lowers the mite load. If this opportunity is missed, the accumulated mites wear down the winter bees throughout the winter and the colony collapses in February-March.

Application Conditions

• Broodlessness is essential: the colony must genuinely be broodless; if there is brood the treatment is ineffective.
• Temperature: application is done within the temperature range on the product's label; in extreme cold some methods become ineffective or harmful.
• Fast application: the hive is not kept open long; the cluster must not be chilled.
• Single application: these methods are designed as a single treatment in the broodless period.

Mice and Rodents

With the cold, mice discover the hive as shelter; a mouse that gets in wrecks the comb, disturbs the colony and ends the wintering. The mouse guard must have been fitted before the mice got in; fitting it afterwards only traps the mouse inside. In this period it is confirmed once more that the guard is in place and sound, because the hive will not be opened again through winter.

Birds

In some regions birds such as tits come to the entrance in winter and prey on emerging bees, or knock on the hive to draw bees out. It is usually not a serious threat, but in weak colonies and under heavy bird pressure entrance protection may be considered.

The Insidious Threat of Winter: Damp and Mould

The ventilation arrangement set up beforehand prevents the damp- and mould-related problems of winter. Inadequate ventilation prepares the ground for mould, condensation and nosema inside the hive. A "pest" is not always alive — in this period damp is the most insidious threat, and its solution is physical (ventilation), not chemical.

In this period natural sources are effectively finished. The colony now depends not on the outside but on its internal stores. Still, in some regions the last remnants and the unexpected mild days of winter may offer small opportunities.

The End of the Source

Flowering has ended, the cold has stopped everything. For the bee the outside world is no longer a source of income. Once the cluster is formed, foraging largely stops in any case — the bee goes out only on very mild days and for cleansing flights. In this period the colony's income is zero; it consumes its stores entirely.

The Last Sources (by Region)

• Ivy (Hedera): In the latest regions it may still be running at the very start of this period — the truly last nectar/pollen source of the year.
• Temperate/Mediterranean regions: If the winter is not very harsh, some species may stay in bloom even in winter; in these regions the colony may find limited income in winter too.
• Mild winter days: On an unexpectedly mild day the bee may go out and find a rare nearby source — but this is not a reliable income.

Management of Internal Stores

From this period onward what matters is not the external source but the state of the stores in the hive. The amount of stores and their position (arranged within the cluster's reach) is decisive. This was set up in the previous periods; it can no longer be changed now, only confirmed one last time.

The Pollen Store

In winter the colony needs a pollen store to feed the first brood of spring. A healthy colony entered winter with an adequate pollen band. This store serves as a bridge in spring until the first source arrives. In this period the pollen store is also fixed — however much pollen the colony entered winter with, that is how much it comes out to spring with.

The Mild-Region Exception

In very mild regions (places that do not freeze in winter) the colony may not enter full winter mode; the queen may keep laying at a low level and the bee may do limited foraging even in winter. In these regions wintering is fundamentally different from that in northern regions, and local experience is decisive.

This is in no way a harvest period. Everything in the hive is the colony's winter stores and is untouchable. The "production" dimension of this period consists only of preparation for the next season and complementary work.

No Harvest

The cluster is formed, the colony has entered winter. The honey and pollen in the hive are the entirety of the stores the colony needs to survive to spring. Taking anything from these stores sends the colony straight to death. Nothing is taken from the hive in this period — full stop.

Completing Extraction and Processing

The extraction, settling, packaging and storage of honey harvested in previous periods can be completed in this period. With the hive work done, the beekeeper's time is given to these tasks. Honey is stored in the right conditions (odourless, cool 14-18°C, dark, airtight container). Crystallised honey can be liquefied at low heat (below 40°C) — never at high heat.

Beeswax Processing

The cappings, old combs and beeswax scraps accumulated through the season can be melted and processed in this period. Melting is done away from the apiary (it attracts robbers). The cleaned beeswax is prepared for foundation making or for sale. This is an ideal product to work on as winter work.

Propolis and Other Products

Propolis collected through the season can be cleaned and processed in this period. But no new propolis is taken from the hive — the colony has sealed its openings with propolis and this is part of the winter insulation; it must not be disturbed.

Product Records and Planning

This period is suitable for doing the season's product accounting: how much honey, pollen, propolis, beeswax was obtained in total? Which colony yielded what? These records are the foundation both for the operation's economics and for next year's planning. The season is fresh; if the figures are not written now, they are forgotten.

This is the period in which the extraction equipment is drawn into winter and the equipment inventory and repairs for the next season are done. With the hive work over, equipment maintenance and next-season preparation begin.

The Last Equipment on the Hive

• Mouse guard: confirmed in place and sound.
• Entrance reducer: set to the narrow winter position but not fully closed (ventilation + cleansing flight).
• Top ventilation / moisture management: checked one last time; cannot be changed in winter.
• Insulation: if applied by region, must be dry and in place.
• Lid securing: weight/strap against wind and animals.
• Solid feeder (if needed): fondant/cake placed above the cluster.

Drawing Extraction Equipment into Winter

The extractor, tank, strainer and uncapping tools are thoroughly cleaned, dried and put away for winter in this period. Equipment left with honey residue ferments, smells and attracts moth. Equipment put away clean and dry works without problems next season.

Winter Storage of Empty Combs

The empty combs left after harvest go into long-term storage in this period. The winter cold largely halts wax moth — this is an advantage. Still, combs must be stored ventilated, in light, stacked with spaces; in a damp, closed environment they grow mould. Valuable drawn comb is the most important stock for next spring.

Equipment Inventory and Repair

Winter is ideal for taking an equipment inventory and doing repairs. Broken frames, rotten hive bodies, faulty feeders, worn-out veils are identified in this period and repaired/replaced over winter. Not being caught short of equipment in the spring rush depends on this inventory.

Next-Season Purchases

This period is the time to identify the equipment and material needs (foundation, sugar, frames, new hives) for next season and to place orders. Ordering calmly in the winter months is both cheaper and safer than buying in haste in the spring rush.

In this period the apiary is handed over to winter. The physical preparation is complete, the colonies are settled. The beekeeper's job now is to protect the site and watch it through winter.

Final Wind and Drainage Check

The winter-location preparation is reviewed one last time: is the windbreak in place, are the hives oriented correctly against the wind, does the ground not hold water, are the hives raised enough and tilted forward. These checks cannot be done in winter; they must be confirmed now.

Snow and Ice Preparation

In snowy regions preparation is needed:

• Positioning the entrance so it is not blocked by snow (or clearing after snow).
• Lid strength so that snow does not build up and cause collapse.
• Stability so hives do not tip under heavy snow.
• Considering the access route to the hives on icy ground.

Sun and Flight Opportunity

On mild, sunny days in winter the bee goes out for a cleansing flight — this is vital for the colony's health (the bee does not defecate inside the hive, it waits to fly). So the hive location should catch the winter sun; the front of the entrance should be clear so that on a mild noon the bee can come out easily.

Final Environment and Rodent Check

The apiary surroundings are clean, no weeds or piles — no mouse shelter left. This reduces rodent pressure through the winter. The area under and around the hive should be well-ventilated.

Security

The apiary is visited less in winter; this is a period open to theft and animal damage. Hives should be secured, the apiary fenced and, where possible, under surveillance. Remote apiaries require extra security measures in this period.

Winter Observation Plan

In this period the beekeeper plans how and how often the apiary will be observed through winter. The hive will not be opened but external observation continues: flight checks on mild days, entrance checks after snow, weight monitoring (with a scaled hive). Passing winter quietly but with the eyes is the mark of good beekeeping.