Every spring, somebody calls us in April with the same story. The hive looked terrific in October. Heavy. Loud. Bees pouring out the entrance on the last warm day. Then they cracked the lid in April and found a cluster the size of a softball, dead, head-first in the cells.
Now what? Now they're scrambling. Calling around for bees. Splitting the one colony that made it and hoping two weak hives are better than one good one. Starting over.
Here's the part that stings: a lot of those colonies didn't starve because they ran out of food. They starved with honey still in the box.
That's a fixable problem, and fixing it is the biggest single reason our winter numbers look the way they do. In October we take our double-deep colonies apart and put them back together as tall, narrow stacks of five-frame boxes — four boxes high, lined up shoulder to shoulder, facing south.
Same bees. Same frames. Different shape.
None of this is new
Wintering bees in small, narrow cavities is old. Beekeepers were doing versions of it in Europe a century ago, plenty of northern commercial outfits have run some version of it for decades, and there are queen breeders and honey producers all over the northern states and Canada doing it right now in a dozen different configurations.
Some run divided boxes with two colonies sharing a footprint. Some winter small colonies on top of production hives, using the big colony below as a heat source. Some go tall and narrow like we do. Some do it in polystyrene, some in wood, some in a building.
There's no trademark on it and no single right answer. Every operation lands somewhere different depending on their winters, their equipment, and what they want out of the colonies come spring. What follows is where we landed, and why. Take the parts that fit your yard.
The one idea underneath all of it
Bees move up. They don't reliably move sideways.
In a hard cold snap, a winter cluster eats the honey directly above it and keeps working upward. What it will not do is break cluster and travel across cold combs to reach honey two frames over. It'll sit there and starve with food eighteen inches away.
That's what's happening in most of those April dead-outs. Pull the frames and you'll often find capped honey against both outside walls and a dead cluster in the middle. That colony didn't run out of groceries. It ran out of reachable groceries.
So it isn't really a feeding problem. It's a geometry problem — the pantry got built in the wrong direction.
A ten-frame box is a wide, shallow cavity. It asks a winter cluster to do the one thing a winter cluster won't do. So we stop asking.
The math that makes it work
Here's what sold us on it.
A double-deep ten-frame colony holds twenty frames of comb.
Four five-frame boxes hold twenty frames of comb.
It's the same colony. Same bees, same brood nest, same stores, same frame count — just restacked from a two-story wide box into a four-story narrow one. You're not shrinking the colony, downsizing it, or asking it to survive on less. You're taking everything it already had and rearranging it into a column, where the food sits directly over the cluster's head from November to April instead of off to the sides where they can't get at it.
Five frames wide. Four boxes high. Twenty frames — fifteen of food and five of nest. Footprint about the size of a milk crate, and a colony that can eat its way straight to the top.
Weight
We go into winter right around 200 pounds, total weight on the scale.
That's the whole hive, not just the feed — four boxes, twenty frames of drawn comb, bottom board, lid, bees, and stores. Roughly speaking, call it forty-some pounds of woodenware, another thirty-odd in frames and comb, a few pounds of bees, and the rest is what they'll eat.
That's more than most people put on a colony this size, and it's on purpose. A long winter with a late spring is the scenario that kills bees up here, and the cheapest insurance against it is weight in October. Bees that run short in March die within sight of the dandelions.
Hitting that number is a summer and early-fall job, not an October one. By the time we're breaking colonies down, the feeding is finished — anything still short at that point gets made up with capped frames, not syrup. More on that below.
And it has to be there by Halloween.
October 31 is the date we work to, and it isn't arbitrary. By the end of October the nights are cold enough that bees can't take syrup and cure it down to something they can cap. Brood rearing has wound down. The cluster is forming for real. A colony that's light on Halloween is light for the winter, because everything you do after that is being done to a colony that's already committed.
It's also a useful check if you only run a few hives and don't want to keep records. Get your hands under the stack on Halloween and lift. If it doesn't feel like it's bolted to the ground, you've got a problem — and about a week to fix it with frames instead of syrup.
Moving them in
The transfer happens in October, once the season's work is done.
Nothing goes in the stack with mites
Before any of the woodenware gets touched, there's a gate: we treat in the weeks leading up to the move, we test every colony before it goes in, and nothing gets stacked unless it comes back low or clean.
That's not a suggestion, it's a hard line. Here's why it has to be.
The bees that will carry a colony through winter are raised in late summer and early fall. They're a different animal than a summer bee — fat-bodied, long-lived, built to last six months instead of six weeks. If mites are feeding on them while they're developing, they come out of the cell already compromised, and they don't last. A colony can look fine in October, cluster up, and simply run out of bees in February because the ones it went in with were damaged before they ever flew.
By the time you see the problem, it's months past fixing.
And there's a second reason, specific to how we winter. These stacks sit shoulder to shoulder, touching, in a row. That's a heat advantage all winter and it's also a highway. Putting a mite-loaded colony in the middle of a tight row is a good way to make it everybody's problem come spring.
So: treat first, then test, then move. Test with an actual count, not by looking at the bees and hoping — a colony can be carrying a load that will kill it and still look perfectly healthy on the frame. And if a colony doesn't pass, it doesn't go in the row. What happens to it instead is covered below, and it isn't nothing.
Which frame goes where
This is the part that actually matters, and it isn't just halving each deep and stacking the halves. You're rebuilding the colony vertically, and we build to a target:
15 frames of resource. 5 frames of nest.
Twenty frames, and only a quarter of them are brood nest. Everything else is food.
The five nest frames go in the bottom of the column, three in the first box and two in the second, with resource frames filling out the rest of those two boxes. Boxes three and four are nothing but resource.
That shape is doing something specific. The nest sits low and tapers as it goes up, which is the shape a fall cluster wants to be anyway — broad at the bottom, narrowing toward the top. Above that sits ten straight frames of food with nothing in the way. The colony spends November down in the nest, and from there it's a clean climb through the pantry with no lateral moves and no dead ends.
If you take one thing from this post, take the ratio. Most people winter colonies that are two-thirds comb and one-third food and wonder why March is hard. Flip it.
Done right, you've handed the colony a winter with no decisions in it. Eat what's overhead. Move up. Repeat.
The part nobody likes talking about
Not every colony goes into a stack. Some of them get taken apart.
By October it's too late to fix a light colony with syrup — bees can't cure and cap sugar water in cold weather, and pouring it on in November just adds moisture to a hive that doesn't need any. Past a certain point in the fall, the only thing that will bring a colony up to weight is capped frames of honey, and those have to come from somewhere.
They come from the colonies that weren't going to make it anyway.
So the transfer is also a triage. A colony that's light, small-clustered, headed by a queen we're not confident in, or carrying a mite load it shouldn't be carrying is a colony that's probably dead by March — and when it dies it takes its honey and its equipment out of production with it. Instead, we break it down and move its honey frames into a strong colony that's sitting three or four frames short of where it needs to be.
One marginal colony and one strong-but-light colony become one colony that's going to be alive in April. That's a better outcome than two dead-outs and a pile of robbed-out comb.
We're willing to make that call, and we'd encourage you to be too. It goes against every instinct — you've kept those bees all summer, and nobody gets into beekeeping to take hives apart. But sentiment in October turns into losses in March. Be honest about which colonies are actually going to make it, and put the resources where they'll do some good.
And the bees from a culled colony? That depends on why we culled it.
A colony that's simply behind — light, small cluster, a queen we don't have confidence in, but clean on mites — gets its resources pulled and the bees are left on their own. They don't get combined into a neighbor and they don't get nursed along.
A colony with a high mite load is a different problem, and it gets handled differently. We destroy it, humanely, right there.
That isn't squeamishness and it isn't punishment. It's arithmetic. A collapsing colony is the most dangerous thing in a fall bee yard: as it goes down it stops defending itself, the neighbors rob it out, and every robber that flies home carries mites with her. One untreated colony dwindling next to your good ones in October can undo every bit of mite work you did all season. Beekeepers call it a mite bomb, and it's a big part of why people who treated carefully still open dead hives in February.
We're not going to test every colony before it goes in the row, put only the clean ones in, and then leave a live reservoir sitting in the same yard. That'd be locking the door and leaving the window open.
There's also a longer-term reason for culling at all. Every colony you carry through winter is a colony you're voting for. Come spring, the bees that made it are the bees you build from — you're splitting off them, raising queens off them, filling your yard with their daughters. Prop up a weak colony and you've just put its genetics into next year's stock. Do that a few seasons running and you've quietly selected for bees that need propping up.
We'd rather select the other direction. A colony that couldn't get itself to a defensible weight, hold a decent cluster, and stay on top of its mite load with the season we gave it has told us something useful. We listen to it.
The wall
Here's the part that does more work than anything else, and the part most people skip.
We set the stacks side by side, touching. Every stack in the middle of a row has a live neighbor on each side — a warm body radiating heat through a shared wall. A colony sitting alone is fighting winter on four exposed sides. A colony in the middle of a row is fighting it on one. Ten stacks in a row don't behave like ten separate hives. They behave more like one long insulated block with ten clusters in it.
Two inches of foam board — four panels. The top, the back, and one on each end of the row. The front is the only face we leave bare. The top matters most — a warm lid means condensation forms on the walls and runs down instead of dripping cold water onto the cluster. Moisture kills more northern colonies than cold ever does.
The fronts stay open, and they're painted black.
And the entrances face south — but not dead south.
We tip the row a little to the east.
Due south sounds right on paper and it's what you'll read most places, but out here the weather comes out of the west. An entrance squared up dead south still catches enough of that to matter, especially anything quartering in from the southwest, and wind blowing into an entrance all winter is a heat leak you can't insulate your way out of. Turning the fronts a few degrees east tucks the entrances into the lee of the prevailing wind instead of presenting them to it.
You give up almost nothing in sun for it. What you gain is morning sun — the row starts warming earlier in the day, which means the bees get their flying window during the warmest stretch instead of at the tail end of the afternoon when it's already cooling off.
That last part is deliberate. A black, south-facing front is a solar collector. On a clear January afternoon at this latitude the sun sits low and hits that face nearly straight on, and black paint picks up real heat off it — free heat, every sunny day, right at the front of the colony where the bees can use it. Insulating that face would throw the gain away.
So the design is: sealed up everywhere the weather comes from, and wide open to the one direction the sun comes from.
One honest tradeoff. Warm fronts encourage cleansing flights on sunny cold days. That's mostly good — bees need those flights, and a colony that can't take one gets dysentery. But on a bright ten-degree day, some bees will go out and not come back. We think the trade is worth it and our numbers say so. If you're somewhere with brutal wind and rare winter sun, you might weigh it differently.
Holding it together
Prairie wind is the obvious question with a stack this tall, and the answer is less involved than people expect.
We don't strap the stacks down vertically. Two hundred pounds sitting in a row with neighbors on both sides is not a tippy object, and the boxes aren't going anywhere.
The foam is what needs securing. Rigid board is light, it catches wind like a sail, and it will absolutely be in the next county by February if you just lean it against the boxes and walk away. So: a couple of cinder blocks on top of the top sheet, and one strap run horizontally around the whole row to hold the side and back panels tight against the woodenware.
That's it. One strap for the entire row, not one per colony — which is another small argument for lining them up in the first place.
One detail worth getting right: the top panel laps over the outside of the side and back panels. Not tucked between them, not butted flush — the top sheet sits on the outside, overhanging.
Same logic as shingles. Every winter thaw and every rain puts water on top of that row, and it's going to run somewhere. Lap the top over the sides and it runs down the outer face of the foam and drips off onto the ground. Get it backwards, with the side panels standing proud of the top, and you've built a funnel that channels water straight down the gap between the foam and the boxes — where it soaks the woodenware, wets the foam from behind, and sits there all winter.
Wet foam is barely insulation at all. Wet boxes in February are worse. Two minutes of attention when you're putting the panels on saves you from finding out the hard way in April.
Then tape the seams. We run red sheathing tape along the joint where the top panel meets the sides, and down every corner.
Wind doesn't have to tear the foam off to cost you. It just has to find a seam and work it. Give a January gust an unsealed edge and it'll get underneath, lift it a little, lift it a little more, and by February the panel is a lever with two hundred pounds of leverage against a couple of cinder blocks. Taped seams turn four loose sheets into one shell — there's no edge left for the wind to get a grip on.
It also keeps wind-driven snow out of the gap. Fine snow will pack into an open seam and sit against the boxes, and when it melts you're right back to wet woodenware.
Lap sheds the water. Tape stops the wind. Blocks and a strap hold it all down.
Winter prep, short version
- Weight first, and done by Halloween. Right around 200 lbs total on the scale by October 31. Everything else is secondary to this.
- Mouse guards over the entrance — half-inch hardware cloth or smaller.
- Two inches of foam on top, both ends, and the back. Fronts open and painted black. Lap the top panel over the outside of the side panels so meltwater sheds clear instead of running down behind them.
- Secure the foam, not the boxes. Cinder blocks on the top sheet, one strap run horizontally around the row, and red sheathing tape on the top-to-side seam and every corner so the wind can't get an edge.
- Face them south, tipped slightly east — out of the westerly wind, and give them a clear shot at the sun. Don't tuck them behind a shelterbelt that shades the fronts all winter.
- Upper entrance and ventilation. Let the moisture out the top.
- Mites — handled before any of this. Treat in the weeks leading up to the move, test every colony, and don't stack anything that isn't low or clean. October is far too late to discover a problem.
What comes out in spring
This is the payoff, and it's why we do it this way instead of just wrapping ten-frame hives.
A colony that wintered in a chimney comes into April as a tight, well-fed unit with a queen that has proven she can do the one thing that actually matters. It builds fast — faster than most of what else is in the yard.
Then we take it apart.
The core nest — the cluster, the brood, and the queen — comes out as an overwintered nuc. That's a colony with a laying queen, brood in all stages, and a winter already behind it. It's the strongest start anybody can hand a beekeeper in spring, and it's ready to go the day it's picked up.
The extra frames and bees go into new nucs. A colony that wintered twenty frames has more than a nuc's worth in it by the time the maples bloom. Those surplus frames of brood and bees become the next round of colonies, which build up over the summer and go into their own chimneys the following October.
That's the whole cycle, and it's the reason this is worth the equipment and the October labor. The colonies you winter aren't just colonies you didn't lose. They're the stock that produces next year's bees. Done consistently, the yard funds its own replacement instead of your wallet funding it every spring.
Straight talk: what this isn't
- It's a lot of boxes. Four five-frame deeps per colony, plus bottom boards and lids, plus foam. Have it built and painted in September, not the week you need it.
- It's a real afternoon of work. Breaking down a double deep and rebuilding it as a column, frame by frame, times however many colonies you run. This is not a shortcut.
- It doesn't fix bad management. A colony that goes into the stack light, mite-loaded, or headed by a failing queen comes out dead. The configuration protects a good colony. It won't rescue a bad one.
- You have to be willing to cull. If you can't bring yourself to take apart a marginal colony in October, the system doesn't work as well, because that's where the frames come from to bring the good ones up to weight. This is the part most people quit on.
- Losses still happen. Nobody winters everything. The point isn't perfection — it's that when you lose colonies, you pull the replacements out of your own yard instead of your own wallet.
Coming up in this series
- Part 2: Moisture, ventilation, and why wrapping isn't the answer people think it is
- Part 3: Fall feeding — how much, how late, and when to quit
- Part 4: Mite management on the back half of the season
- Part 5: What to do in February and March when you can't open the hive
Questions about any of this? Call or text us at (701) 809-0153. We're always happy to help, even if you didn't get your bees from us.