As winter loses its grip and temperatures begin to rise, honey bee colonies emerge from their dormant phase, entering one of the most critical periods of their annual cycle. Spring is a period of intense colony development that determines the productivity and resilience of a hive throughout the season. Early spring management is a delicate balancing act: colonies must grow at a sustainable rate while avoiding starvation, disease, and premature swarming.
The Mass Orientation Flights: Rebuilding from Winter
By late March, as temperatures consistently reach 14-16°C, colonies begin their main cleansing flights, marking the end of winter confinement. This is the moment when beekeepers can perform their first full assessment of hive conditions. To support development, a supplemental honey and pollen reserve is added: a separate hive body containing 10-12 kg of honey and pollen is placed beneath the wintering colony, with a plastic film between them and a small 2-3 cm opening, allowing bees to access the food without exposing the colony to cold air.
The First Generation: Critical Early Growth
After the cleansing flight, the first new generation of bees is raised almost entirely by the overwintered worker bees, whose own physiological resources are used to feed the brood. Damaged or moldy combs are removed and new empty frames introduced. Some colonies benefit from stimulative feeding for 21 days — fed every two days with 250ml of 1:1 honey syrup enriched with bitter herbal extracts. This supports brood rearing, helps prevent Nosema disease, and extends the lifespan of the first generation.
Important: stimulative feeding should only be done for strong colonies. Pushing weak colonies to produce even more brood can lead to brood diseases and colony collapse.
Merging Colonies: Strengthening Weak Hives
One of the most common early spring challenges is encountering weak colonies that have survived winter but lack the strength to grow independently. To prevent their loss, they are merged with stronger hives using a controlled integration process, always performed in the evening when nectar foraging is at a minimum:
- The weak hive is moved next to the strong hive, its entrance reduced to a small opening to minimise robbing.
- A wire separator is placed on top of the strong hive and the weaker colony placed above it, with a plastic film between them.
- After 24 hours, a corner of the film is folded back and the bees are lightly sprayed with sugar syrup to encourage integration.
- After three to four days, the separator is removed and the colonies merge into a single unit.
Merged colonies often grow rapidly, and by mid-season 30-50% of them may need to be split again to prevent swarming, so plan for enough extra hive bodies.
Building Towards a Productive Season
The ultimate goal of spring management is to build up strong colonies before the main honey flow begins. Timing is crucial — if colonies expand too early, they risk brood chilling during cold nights; if too late, they may miss peak nectar flows. Remember that it is not the queen that makes a strong colony, but the workforce of bees that surrounds her.