Bee Swarm Season on the Treasure Coast
Why swarms show up when they do, month by month, and what to do when one lands in your yard.
On the Treasure Coast, swarm season peaks from late February through May, with a smaller second wave in September and October when Brazilian pepper blooms. Because winters here are mild, colonies never fully shut down, so a swarm is possible in any month.
Why Bees Swarm at All
A swarm is a colony splitting in two. When a hive gets crowded and food is plentiful, the workers raise new queens, and the old queen leaves with roughly half the bees to start over somewhere else. They cluster on a branch or fence while scouts search for a cavity, then move in. It's reproduction, not aggression, and it's tied tightly to what's blooming.
The Treasure Coast Bee Calendar
- January: Colonies are building up. Red maple and early wildflowers feed them.
- February–March: Citrus bloom in St. Lucie County's groves and backyard trees sends colonies into overdrive. Swarm calls start climbing.
- April–May: Peak season. Saw palmetto blooms across the scrub and flatwoods, and our phones ring the most.
- June–August: Cabbage palms and summer flowers keep colonies strong. Swarms slow down, but storms knock trees down and push displaced colonies into homes.
- September–October: Brazilian pepper, an invasive shrub common on vacant lots and canal banks, blooms heavily and triggers a second swarm wave.
- November–December: Quieter, but colonies stay active and established hives in walls keep growing.
Swarm in your yard right now?Call now or text a photo for a quick price.
Hurricane Season and Bees
Storms matter more here than most people realize. A hurricane or strong tropical storm can split open hollow trees and tear off soffit and fascia. Colonies that lose their tree go looking for a new cavity, and storm damage has just opened up thousands of them. After a major storm, check soffits, roof edges and wall penetrations for bee traffic.
What to Do When a Swarm Lands
- Keep people and pets away. Swarms are usually calm, but thousands of bees still deserve space.
- Don't spray, hose or knock it down. That scatters bees and can push them into your house.
- Take a photo and text it to 772-444-8442.
- Watch for bees going into something nearby. That means it's already moving in.
A hanging swarm is the cheapest kind of bee removal there is. See bee swarm removal.
How to Keep Swarms Out of Your Home
- Seal soffit corners, bent panels and fascia gaps before February.
- Caulk or screen gaps around hose bibs, AC lines, dryer vents and cable entries.
- Replace cracked irrigation valve box and meter box lids.
- Screen gable vents and roof vents.
- Don't leave empty boxes, coolers, grills or old boats sitting untouched in spring.
If you had a colony removed before, make sure the old comb was taken out. Leftover comb is the strongest swarm magnet there is. See honeycomb removal.
Quick Questions
April is usually the busiest, with March and May close behind.
Yes. On the Treasure Coast, Brazilian pepper's bloom in September and October brings a second, smaller swarm season.
Usually a few hours to two days, until scouts agree on a new home.
A swarm is a hanging cluster with no comb. If bees are flying into a hole, it's a hive.