Late-Winter Emergency Feeding: Using Fondant to Save a Starving Colony

Why fondant, and why now

Late winter is the period when UK colonies are most likely to starve, not because the season is coldest but because it is the point where stores laid down in autumn have been drawn down for months while brood rearing is quietly resuming. A cluster that looks fine at the December inspection can be dangerously light by February, especially after a run of mild days that let bees fly, forage briefly, and burn through stores faster than a truly cold, still winter would allow.

Liquid syrup is unsuitable in cold weather because bees cannot process and evaporate it properly below around 10°C, and it risks chilling the cluster or fermenting in the comb. Fondant, a firm sugar paste, solves this: bees can take it directly with minimal effort and no need to ripen or dry it, making it the standard emergency ration for the weeks before the first proper spring flow.

Recognising a colony that needs it

Hefting the hive remains the simplest field check - lift gently from the back and get a feel for weight, and compare it against how the same hive felt in autumn when stores were topped up. A hive that feels alarmingly light, with little resistance, is a candidate for immediate feeding regardless of the calendar date. Where you can check without disturbing the cluster too much, look for the position of the bees relative to stores: a cluster that has moved to the very edge of the frames with no honey nearby is at real risk, because clusters generally will not break formation in cold weather to cross to food even a short distance away.

Other useful signs include reduced or erratic activity at the entrance on mild days, a scattering of dead bees that looks heavier than normal attrition, and, if you can safely check, capped stores reduced to a frame or less. None of these signs alone is conclusive, but together they justify erring on the side of feeding rather than waiting.

Making and placing fondant

A standard approach uses roughly four parts sugar to one part water by weight, heated gently until fully dissolved and then cooled into a firm but pliable block; some beekeepers add a small amount of glucose or a splash of vinegar to prevent crystallisation on standing. Ready-made bakery fondant is a perfectly acceptable and often more convenient alternative, provided it contains no additives unsuitable for bees.

Place the block directly over the cluster, either on top of the frames under an eke or spacer, or wrapped and slit so bees can access it through a hole in the crown board. Direct contact with the cluster matters more than exact positioning, since a starving cluster in cold weather may not move even a few centimetres to reach food that is not immediately above them.

Monitoring and transitioning off

Check consumption every week to ten days where weather allows a brief look without fully opening the hive, topping up the block as it is drawn down. Rapid consumption is a good sign that the colony is alive and active, but it also means the risk period is not over and repeat visits are needed. As temperatures rise into double figures and the first reliable pollen and nectar sources appear, typically around the time willow, gorse or early garden shrubs start flowering, feeding can shift back to thin syrup or be stopped altogether if natural forage is sufficient.

Avoid switching to syrup too early simply because a single mild day has arrived; a return to cold weather immediately afterward can leave uneaten liquid feed in a state that neither helps the bees nor evaporates safely.

Preventing the need for emergency feeding next year

Emergency winter feeding is best treated as a rescue measure rather than routine management, and the real fix happens the previous autumn. Colonies that go into winter with generous, well-positioned stores and a manageable mite load rarely need fondant at all. Where a colony does need it two winters running, that is worth treating as a signal in itself - either the autumn feeding programme needs adjusting or the colony has an underlying weakness, such as an ageing queen or a chronic disease issue, that is better solved by requeening or uniting than by repeated emergency rescues.