The honey bee foraging range

A honey bee colony works the landscape in rough zones. The first mile is the core, where trips are cheapest and traffic is heaviest. Out to 2 miles is the normal working range, where most nectar and pollen comes from over a season. Bees will push to 3 miles and beyond, with individual foragers recorded 5 or more miles out, but a long flight burns much of the energy the trip collects. So a colony extends its range only when the forage nearby runs thin.

This is not a guess. Researchers have read the waggle dances bees use to tell each other where forage is, and the distances they encode line up with this picture: about a mile on average when forage is rich, several miles when it is poor, and the whole colony adjusting to whatever the season offers.

How much land a hive covers

The reason distance matters so much is area, and area grows with the square of the radius. Each extra mile of range adds far more ground than the last:

  • 1 mile covers about 2,010 acres.
  • 2 miles covers about 8,040 acres.
  • 3 miles covers about 18,100 acres, which is over 28 square miles.

Two lessons fall out of those numbers. First, your bees' diet is decided by the landscape, not by your garden. A colony working an 8,000 acre circle will not be fed by a flower bed, however nice it is for you to watch. Second, when you pick a spot for a hive, you are really picking the several thousand acres around it.

What decides how far they actually go

The 2 mile figure is a default, not a constant. A few things move it:

  • How rich the nearby forage is. Abundant bloom close to home keeps foragers close. A hungry landscape pushes them out.
  • The season. Range shifts with what is blooming, from early tree flow to summer weeds to fall goldenrod, and the good patches are rarely in the same direction month to month.
  • Terrain and obstacles. Bees prefer not to cross big ridges or wide open water and will work around them, so the real foraging area is rarely a perfect circle.
  • Competition. Lots of colonies in one place, yours or a neighbor's, thins the nearby forage faster and sends everyone farther out.

Using forage range to site an apiary

This is where the range becomes a practical tool instead of trivia. When you are choosing a spot for hives, judge it by what falls inside the 2 mile ring, because that is where most of the foraging will happen. Look for:

  • Diverse bloom across the season, not just one big spring flow.
  • Water within the first mile, since bees need it and will use the closest source.
  • Dead space you cannot fix, like large monoculture turf, pavement or open water, that produces nothing for a chunk of the circle.

The Forage Range Map draws these rings on a real map for any spot you pin, with the acreage inside each, so you can compare two candidate sites in about a minute each. Drop a pin on each one and look at what the 2 mile circle actually contains.

A note on queens and drones

Everything above is about worker foraging. Queens and drones leave the hive for mating, not food. A virgin queen flies out to a drone congregation area, usually within a couple of miles, and drones gather at those same areas a few miles from home. Neither forages, so the forage range is a worker story from start to finish.