05/27/2026
Bumblebees pollinate differently from honey bees — and for certain crops, nothing else can replace them.
Bumblebees perform buzz pollination. They grab a flower and vibrate their flight muscles at 400 Hz — a frequency that causes the anther to release pollen that gravity or wind alone would never dislodge. This is called sonication.
Tomatoes, peppers, blueberries, and aubergines require this specific vibration to release their pollen. Honey bees cannot generate it. In commercial greenhouses, bumblebee colonies are shipped in to pollinate tomatoes precisely because honey bees fail at the task.
A bumblebee colony is also dramatically smaller than a honey bee colony — 50 to 400 individuals versus 80,000 in a honey bee hive. The entire colony dies each autumn except for one mated queen, who overwinters alone underground and re-establishes the colony from scratch each spring.
Every bumblebee you see working your garden is either a daughter of that queen or the queen herself.
How to help them: leave bare patches of undisturbed soil in your garden — 70 percent of North American bumblebee species nest underground. A small unmown corner with loose soil is a potential nesting site. 🐝
