KiwiBeek · Wellington, NZ · Beginners · Jul 3, 2026

Mid-winter note from Wellington: heft, don't open — why you leave the cluster alone in June and July

A thread for the Southern Hemisphere crowd, since the forum is understandably wall-to-wall swarms and supers right now. It's cold, grey mid-winter here in Wellington and I did my stores round this afternoon: six hives, and I never cracked a single lid. The whole check is hefting — tip each hive slightly from the back and feel the weight. You learn the scale fast: 'can barely lift' is a happy hive, 'swings up easily' means reach for the fondant. I put a sugar brick on one light hive today through the notch in the crown board, ten seconds, lid back on. Why not look inside? Because the winter cluster is a heat engine — bees shivering to keep the core above about 20°C (way warmer if there's brood). Break the propolis seal and dump the warm air on a 10°C day and they'll spend a chunk of their stores and body reserves reheating, for information your arms could've told you. Inspections can wait for the first decent spring day. New SH keepers: strap the lids, heft monthly, keep entrances clear after storms, and leave them be.

#southern-hemisphere#winter#hefting#stores

▲ 20 votes 💬 4 replies

4 replies

BallaratBees · Jul 3, 2026

Same routine down here in Victoria — hefted mine Sunday, two of eight getting light so they got fondant through the hole. One thing I'd add for newer folks: do the heft from the SAME side every time or your calibration is off, stores are never spread evenly. Mine sit heavier on the north face where the sun lands.

MendozaMiel · Jul 3, 2026

Mendoza checking in, -2°C this morning. Agree completely, and this broodless window is also when I do my oxalic dribble — with no capped brood the mites have nowhere to hide, so one treatment now does more than three in spring. Quick job, cluster barely disturbed if you're smooth about it.

NalediBees · Jul 3, 2026

Mpumalanga winters are milder so my bees still fly at midday, but the principle holds — I haven't pulled a brood frame since May. Hefting plus watching entrance traffic on warm days tells you 90% of what you need. The other 10% can wait for August.

mn_newbee · Jul 4, 2026

Northern first-year here taking notes for my own coming winter — the 'heat engine' explanation finally made the don't-open rule click for me. Question: how often do you re-heft? Monthly all winter, or more often toward the end when stores run lowest?

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Mid-winter note from Wellington: heft, don't open — why you leave the cluster alone in June and July

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