You can protect winter vegetables from snow by using sturdy covers with peaked tops. Snow protection for garden crops starts with structures strong enough to hold heavy winter loads.
I lost an entire cold frame to heavy snow three winters ago. The flat lid held the weight until it cracked under the load. Now all my winter garden structures have angled tops that let snow slide right off.
Snow acts like a blanket that keeps your plants warm when temps drop below zero. A layer of snow on top of row cover adds extra protection from bitter cold. But too much snow crushes your covers and damages the plants below.
Brush off snow when it piles up more than 6 inches on your covers. I keep a soft broom by the garden door for this job. A quick sweep after each storm keeps the weight from building up to dangerous levels on your structures.
Cold Frame Design
- Lid angle: Build your lids with a 30 degree or steeper slope so snow slides off before it can pile up.
- Strong frames: Use thick lumber or metal frames that can hold 40 pounds per square foot of snow load.
- Low profile: Keep your cold frames under 18 inches tall so wind blows snow over the top instead of onto it.
Low Tunnel Setup
- Heavy duty hoops: Use rigid metal or thick PVC hoops that flex without breaking under snow weight.
- Peaked shape: Form your hoops into a point at the top rather than a round curve for better snow shedding.
- Anchor points: Secure hoops to stakes driven 12 inches deep so wind and snow do not knock them over.
Quick Fixes
- Center supports: Add a ridge pole down the center of long tunnels to stop sagging under snow weight.
- Emergency props: Keep wooden posts handy to prop up covers if heavy snow is falling and you cannot brush it off.
- Backup cover: Store extra row cover fabric so you can replace any that rips under ice or snow loads.
Your winter garden structures work best when you choose the right crops to grow under them. Low growing plants like spinach and lettuce leave room for snow to pile up without crushing leaves against the cover.
Last winter I grew kale under a tunnel and the tall leaves kept touching the frozen cover. The spots where leaves met plastic turned black from frost damage. Now I stick to short crops under my snow-prone tunnels.
Check on your garden after every storm if you can get outside safely. Wet heavy snow weighs more than dry powder and can collapse your covers fast. A quick check takes 5 minutes and can save your whole winter harvest.
When I first tried winter growing in a snowy area, I did not plan for heavy loads. My flimsy tunnels collapsed in January and I lost months of work. Now I build everything twice as strong as I think it needs to be.
Some gardeners skip structures and let snow cover their crops right on the ground. Your root vegetables under straw mulch do fine this way. The snow just adds more cover on top of the mulch layer you already placed.
Your winter garden can handle snow if you plan ahead with smart designs. Build strong, brush off heavy loads, and your crops will stay safe under the white blanket all season long.
Read the full article: Winter Vegetable Garden: Fresh Produce All Year
