Last Updated on October 8, 2026
How to Store Carrots for Winter: In the Ground, in Sand or in the Fridge
Store carrots cold and humid, at 32-40°F (32°F is best) and 90-98% humidity, with the tops cut off and the roots left unwashed. Kept at 32°F with high humidity, carrots last 4 to 6 months, according to University of Illinois Extension. You have three ways to get there: leave them in the bed under a heavy mulch, pack them in damp sand or sawdust in a cold space, or keep a few weeks’ worth in the fridge in perforated bags.
Three ways to store carrots, compared
| Method | What it needs | How long | Source |
|---|---|---|---|
| In the ground under mulch | Straw mulch over the row before a freeze, heavy enough to keep digging. Dig on days above freezing. | Until the ground freezes solid under a straw mulch; through the winter in many areas under a heavy one | WVU (mulch timing), Illinois (how long) |
| Damp sand or sawdust | A cold, dark, damp space near 32°F, carrots layered in moist sand, sawdust or peat moss | Several months | Alaska Fairbanks (conditions), Utah State (time) |
| Fridge crisper | Perforated plastic bags, because a fridge runs about 40°F and only 50-60% humidity | Several weeks | Minnesota (fridge), Illinois (time) |
No cellar? Illinois Extension also mentions a pit in the garden insulated with straw. For the sand and fridge methods, aim for the cold, moist group on my vegetable storage chart (32-40°F, 90-98% humidity), where carrots sit with beets, cabbage and leafy greens.
Get them ready to store
These steps come from the extension guides at WVU, Utah State, SDSU, Alaska Fairbanks and Illinois.
- Dig, do not pull. Carrot tops are often not strong enough to pull the root out without damage. Loosen the soil with a digging fork first, then lift the roots.
- Cut the tops. Cut them off one inch above the root. Left on, the greens pull moisture and nutrients out of the carrot in storage.
- Do not wash them. Washing carrots before you are ready to eat them shortens their storage life. If you do wash some, let them air-dry before they go into storage, because disease organisms thrive on moisture.
- Sort them. Handle them carefully to avoid bruising, and store only roots that are free of disease.
- Cool them down. Dig in the morning after the dew dries and before the afternoon heats things up, then put the carrots somewhere cold to remove the field heat.
- Keep them away from apples and pears. Gases from the fruit make the roots go bitter.
Method 1: leave them in the ground
Carrots can stay right where they grew. My post on how to grow big carrots covers it: in cooler climates you can leave carrots in the soil all winter and dig them fresh in spring, with a substantial layer of mulch over the soil to protect them from freezing. Once they are out of the ground, keep them cold and moist, not dry, or they shrivel.
- Mulch before the freeze, not after. WVU Extension says fall carrots can stay in the garden after a light frost but should be mulched with straw before a freeze.
- Keep snow off. Illinois Extension suggests mulch, row cover or a low tunnel to keep snow off the row so digging is easier. Dig on days above freezing.
- Finish in spring. Carrots are biennials, harvested before they put up seed. Dig what is left in spring, before the second year of growth gets going.
When the last carrots come out, the rest of the bed can be cut down at the soil line and covered with two inches of compost, the way I describe in leave the roots in.
Method 2: damp sand or sawdust
This is the root cellar method, and it works in any space you can keep cold. Utah State Extension says carrots stored in moist sand in a cool cellar keep for several months. The setup below follows the Alaska Fairbanks root cellar guide.
- Find the cold spot. A root cellar should be cold, dark and damp. For carrots, the guide lists 32°F and 90-95% humidity. A walled-off part of a basement or garage can work.
- Dampen the packing. Layer the trimmed, unwashed carrots in moist sand, sawdust or peat moss. Illinois calls for lightly moist sand, so aim for damp, not wet.
- Give it air. Ventilation lets out the excess moisture that encourages mold. Screen the vents to keep rodents out.
- Check them. Look through the carrots now and then and pull out any rotted ones before the rot spreads.
Be honest about the temperature. University of Minnesota Extension says 32°F is hard to reach in most homes, basements tend to be cool and dry, and shelf life can drop by up to 25 percent for every 10°F above the ideal. That is why the damp packing matters: thin-skinned roots like carrots need to be stored so they keep their moisture.
Method 3: the fridge
A fridge is cold, but it is dry, about 40°F and 50-60% humidity by Minnesota’s numbers. Perforated plastic bags give carrots cold, moist air for a moderate stretch. Bags with no holes trap too much moisture, which leads to condensation and mold or bacteria.
Illinois Extension gives carrots several weeks in perforated bags in the crisper drawer. Use the fridge for the carrots you will eat soon, not the whole harvest.
You may see 7 to 9 months quoted for carrots, including on my storage chart. That number comes from USDA Agriculture Handbook 66, which is written for commercial storage: mature, topped carrots held at a steady 32°F and 98-100% humidity. The same handbook says commercial storage rarely hits those conditions and carrots are often held 5 to 6 months at 32-41°F and 90-95% humidity. A kitchen fridge is not that room.
When to dig carrots for storage
- Check the shoulders. University of Minnesota Extension says to harvest carrots when the tops are one inch in diameter. In practice, that means brushing the soil back and checking the width of the root where it meets the leaves.
- Do not let them get huge. Illinois Extension puts full-size varieties at 3/4 inch across or more, about 60 to 70 days after planting. Overgrown carrots taste worse and can have a tough, woody core.
- Count the days. The Plan My Garden planner gives carrots 70 days to maturity. Some storage varieties run longer: Wood Prairie lists Scarlet Keeper at 85 days and Dolciva at 105.
- Pick keepers and dig late. For storage, Alaska Fairbanks recommends varieties that mature late or keep well, harvested as late in the season as you can before a killing frost.
Cold weather helps the flavor. Penn State Extension lists carrots among the roots that get sweet with frost, and root crops build more sugar once the soil is below 40°F (SDSU Extension). The Plan My Garden planner rates carrots as hardy, and my vegetable frost tolerance chart shows how much cold the plants take. The roots themselves freeze at about 29.8°F (Handbook 66), so get the mulch on or the carrots dug before a hard freeze. To see when your first fall frost usually comes, look up your frost dates by zip code.
Common carrot storage problems
| Problem | Likely cause | Fix |
|---|---|---|
| Soft, rubbery or shriveled | Moisture loss | More humidity: perforated bags or damp packing |
| Mold or rot | Condensation in sealed bags, or washed roots stored wet | Use perforated bags, store unwashed, and remove rotted roots before rot spreads |
| Sprouting tops | Storage too warm | Move them somewhere colder; 32-34°F keeps decay and sprouting lowest |
| Bitter taste | Gas from apples or pears (ethylene), or disease | Store carrots away from fruit |
| Frozen roots | Below about 29.8°F | Keep them as cold as you can without freezing |
| Cracks and broken tips | Rough handling | Dig instead of pulling and handle gently |
| Green shoulders | Sunburning while growing | Cut away the green part and use the rest |
Causes come from USDA Agriculture Handbook 66 (shriveling, sprouting, freezing, cracking, bitterness), University of Minnesota Extension (sealed bags), SDSU Extension (washing, rot), Utah State Extension (apples and pears) and Illinois Extension (green shoulders).
Quick questions
Can you leave carrots in the ground over winter?
Yes. In many areas, a heavy straw mulch lets you dig carrots all winter, according to Illinois Extension. Put the mulch on before a freeze and dig on days above freezing.
Should you wash carrots before storing them?
No. WVU Extension says washing carrots before you are ready to eat them shortens their storage life. If you do wash some, let them air-dry before storage, because disease organisms thrive on moisture.
How do you store carrots in sand?
Cut the tops one inch above the root, leave the carrots unwashed, and bury them in lightly moist sand in a cold cellar. Utah State Extension says carrots in moist sand in a cool cellar keep for several months.
How long do carrots last in the fridge?
Several weeks in perforated plastic bags in the crisper drawer, according to Illinois Extension. Bags with no holes trap moisture and can lead to mold.
Do carrots get sweeter after a frost?
Yes. Penn State Extension lists carrots among the roots that get sweet with frost, and root crops build more sugar once the soil is below 40°F.
Plan next year’s storage carrots
A winter’s worth of carrots starts with sowing enough of them on time. Plan My Garden is free to start: enter your zip code and it finds your frost dates, draw your beds, pick carrots and everything else you want to grow, and it places each plant at square-foot spacing and builds a planting schedule, with direct sow dates, from your frost dates. My chart puts carrots at 16 per square; see how many carrots per square foot for bed counts. For seed, Wood Prairie calls Dolciva a very long-keeping storage type and Scarlet Keeper a reliable keeper; both are on its organic carrot seed page, and code PMG5 takes 5 percent off.
