The Primary Goal of Spring: Colony Reproduction

In spring, the honeybee colony shifts from winter survival to reproduction through brood rearing and colony fission—swarming.

Small Swarm

The Primary Goal of Spring: Colony Reproduction

Spring marks a transition from survival to reproduction. Reproduction occurs at two levels: at the individual level, the queen lays eggs and nurse bees rear young to adulthood; at the superorganism level, the colony reproduces through colony fission—swarming.

Swarming is the colony’s central spring objective. Honeybees swarm in spring so a new colony has time to build up and survive the following winter. To support this, colonies produce large amounts of brood early in the season to generate the workforce required for swarming.

Brood Rearing, Energy Use, and Heat

As brood production accelerates, honey consumption increases sharply and internal hive temperature rises. During winter, when there is no brood, temperatures remain lower. In spring, larvae and pupae require tightly regulated warmth, and the colony expends energy—paid for in honey—to maintain these temperatures.

Average brood nest temperature is approximately 34.5°C. Larvae are maintained near 36°C, while pupae are kept around 35°C. By contrast, winter clusters sit near 70°F.

The Annual Population Cycle

The colony follows a predictable annual population cycle with two peaks. The first occurs in early spring (March through May) and culminates in swarming. After swarming, colony population drops as the queen must be replaced and brood temporarily declines.

A second population buildup follows, aimed at producing enough foragers to collect resources during summer and store provisions for winter survival. From mid-summer into winter, colony populations decline substantially, and losing about 50% of the population over winter is typical.

Forage and Spring Buildup

Early spring forage comes primarily from trees, which provide pollen needed for brood rearing. Trees produce little nectar at this stage, though fruit trees bloom later and provide nectar. Willows and oaks are important early pollen sources. Bees may collect pine pollen but avoid it when possible due to its very low protein content.

As spring progresses, flowering plants provide both pollen and nectar, supporting continued brood production and the later population buildup needed for winter survival.

~The Mentorship Team

A deeper exploration of this topic is available in the Four-Slides series by

Dr. Scott Debnam, accessible to Pro and Golden members of The Beekeepers Academy.

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