Honeybees are communal insects. They survive and succeed by working together as a colony, and their strength lies in numbers. A healthy colony must maintain enough bees to:

• Forage for nectar and pollen
• Feed and care for brood (bee larvae)
• Defend the hive from pests and predators
• Clean and maintain the hive
• Regulate temperature (especially important in Arizona’s hot summers)

All of those jobs are done within the the 6 week lifespan of a Honeybee. Crazy, isn’t it? Without sufficient numbers, the workload overwhelms the colony—and it begins to fail quickly. The queen may be able to lay over a thousand eggs a day, but without the workforce to feed the larvae, the replacement generation will not grow to adulthood. That means even fewer bees left to do all of the jobs necessary to keep the colony alive.

A colony might become too small due to:

• A failing or absent queen
• Disease or mites
• Starvation or drought
• Swarming (when half the colony leaves with a new queen)
• Pesticide exposure
• Inadequate forage or water sources

Understanding what normal, healthy hive activity looks like is the first step in noticing when something’s wrong.

In a healthy hive during peak season (spring to early summer), you should see:

• 6–10 frames fully covered with bees
• Bees visibly flying in and out with pollen
• At least 3–5 frames of solid brood pattern
• Forager activity outside and nurse bees inside tending larvae
• Capped and uncapped honey and stored pollen

When you pull a frame from the brood nest, there should be bees covering the frame and a visible pattern of brood—ideally with eggs, larvae, and capped brood all present.

If your colony only covers 1 or 2 frames, that’s a red flag. While this might be expected in winter or very early spring, it could signal problems during active seasons. Small colonies with stores of honey in the summer and fall will often succumb to robbing because they don’t have the numbers to ward of hungry attackers.

Arizona’s unique climate means hives ramp up quickly in spring and often slow down mid-summer due to heat. Here’s what to look for seasonally:

• Spring (Feb–April): Build-up should be fast. Brood should be expanding and foragers active.
• Early Summer (May–June): This is your colony’s peak size. The hive should be bursting with bees.
• Late Summer (July–August): Expect a natural slowdown. Watch for signs of heat stress and robbing.
• Fall (Sept–Nov): Some fall blooms may lead to a second bump in activity, but varroa can also take your hive down at this time.
• Winter (Dec–Jan): Colonies shrink and conserve energy. Less brood, more honey storage.

If you’ve identified that your colony is too small to thrive, here are three practical steps to help:

1. Feed a 1:1 sugar syrup and pollen substitute: If nectar or pollen is scarce, supplement their food to stimulate brood rearing and give the bees the resources they need to grow.
2. Add a frame or two of capped brood: Take capped brood (no eggs or open larvae) from a strong hive and place it in the center of the weak one. This boosts numbers fast as those bees emerge.
3. Switch places with a strong hive: If you have two hives—one strong and one weak—try swapping their locations. Foragers from the strong hive will return to the original location (now the weak hive), instantly increasing its workforce.

If your hive seems small or you’re unsure what you’re looking at, don’t panic—but don’t ignore it either. Regular inspections and a journal to track population changes will help you catch issues early.

Colony size is more than just a number—it’s the lifeblood of your hive. Healthy colonies are busy, buzzing, and full of bees doing their jobs. If you want to build strong hives in Arizona, start by understanding how many bees it takes to thrive—and how to support them when they fall behind.