Carrots are ready when the shoulders swell up at the soil line and the tops look full, which in Maine usually means 70 to 100 days after seeding. Once pulled, cut the tops off and keep the roots at 33 °F with high humidity. Clemson Extension says bunched carrots, tops still on, last only about 10 to 14 days. Trimmed roots keep far longer. This page covers the timing and the storage. The Growing Carrots in Maine guide covers the rest.
When carrots are ready in Maine
Look at the soil line before you look at a calendar. A carrot is close when the root shoulders have swelled and pushed up against the surface, the tops are full and leafy, and the color has deepened to what the seed packet promises. The window runs 70 to 100 days from seeding, counted from the day the seed went into the ground.
That count starts at seeding because carrots are sown in place. They resent being moved, so there is no transplant date to count from. Clemson Cooperative Extension gives 65 to 75 days after planting, which sits at the short end of the same range.
This page does not carry Maine’s average frost dates, and it will not build a calendar from numbers it does not have. You can still work the range yourself. A row seeded on June 1 would reach 70 days on August 10 and 100 days on September 9. Seed a month later and everything slides a month later, straight into cooler weather. Look up your own first and last frost dates and count forward from your actual sowing day.
Test one root before you pull the row
The range is wide because cool soil, a slow summer and the variety all stretch or shrink it. The extension sources behind this page name no variety, so the packet’s stated days to maturity are your best guide for the one you bought. Pull a single carrot at the 70-day mark. If it is thin and pale, leave the row alone and test another a week later. Carrots that are picked too early are edible but small, so the risk of waiting a little is low.
What the ground does to the answer
Utah State University Extension describes the carrot’s ideal as deep, sandy, well-drained soil rich in organic matter. Heavy or rocky ground makes the root fork. Maine’s official state soil, the Chesuncook series, gives a rough picture of what the state’s ground tends to do. Its surface layer is a strongly acid spodosol, with pH about 5.1, and it is loam to silt: 35 percent sand, 12 percent clay and 53 percent silt. It is moderately well drained. The USDA figure for organic matter, about 53.0 percent, describes a natural forest-litter layer that no cultivated bed will match.
That soil represents the state, not your garden. River bottoms, hill country and scraped building lots are different ground. For a quick home check, fill a quart jar about a third full of garden soil, top it with water, shake it hard and let it settle. Sand drops to the bottom, then silt, then clay on top, so you can see your own proportions. A soil test through your county extension office gives you the pH. Will Carrots Fork in Maine Soil? covers what to do if the jar shows a lot of clay.
Keeping them, and for how long
Clemson Cooperative Extension’s Home & Garden Information Center puts the numbers plainly: “Store them at 33 °F and high humidity to prevent wilting. Bunched carrots (plants with tops on) can be stored for about 10 to 14 days.” The advice is to keep the roots at 33 °F and high humidity. The source gives no percentage for humidity, so this page does not either. The practical meaning is air moist enough that the roots do not shrivel.
Why 33 °F is not a cellar temperature
Thirty-three degrees is one degree above freezing. That is colder than most people’s idea of a cool cellar, which is why so many stored carrots fail. A root held at 50 °F is warm enough to sprout and go soft, and it can lose most of its storage life in a fraction of the time. The number is a target, and the closer you can get without freezing, the better.
Cut the tops first
The tops are the catch. The leaves keep drawing moisture out of the root long after harvest, so a carrot stored with its greens on wilts from the inside. That is why the bunched carrots in the Clemson quote last only 10 to 14 days. Twist or cut the greens off within an inch or so of the crown before the carrots go into storage. Trimmed roots can keep for months, but that is a ceiling under ideal cold and humid conditions, not a promise. Your own roots may go earlier.
| Condition | What to expect |
|---|---|
| Tops on, 33 °F, high humidity | About 10 to 14 days (Clemson Extension) |
| Tops cut, 33 °F, high humidity | Months at best, under optimal conditions |
| Around 50 °F | Sprouting and softening in a fraction of the time |
Where in the house that actually is
Nothing in a normal house sits at exactly 33 °F, so you pick the spot that comes closest. For a few pounds, the refrigerator is the best match. It is cold and steady, and the crisper drawer holds humidity. Put trimmed, unwashed roots in a plastic bag with a few holes so moisture stays in but the roots can still breathe. The fridge does not hold a bushel, though, and a fridge full of carrots means little else fits.
For larger amounts, the choice is between the unheated spaces in a Maine house. A heated room or kitchen is far too warm, and the carrots soften. A basement with a furnace running in it is usually warm too. A bulkhead cellar or a cool corner of the basement may come closer, but old cellars can drop below freezing in a hard cold snap. An attached garage swings the most, from mild in October to well under freezing in January.
| Place | Main risk | Fit for carrots |
|---|---|---|
| Refrigerator crisper | Limited space | Closest match for small amounts |
| Unheated cellar or bulkhead | Can freeze in a cold snap | Good if it stays steady and cold |
| Basement near a furnace | Too warm | Poor |
| Attached garage | Swings with the weather | Risky in a Maine winter |
| Kitchen or heated room | Far too warm | Short-term only |
Before you commit a harvest to any of them, put a thermometer where the carrots would sit and read it morning and evening for a week. Skipping that step is how a cellar full of carrots freezes solid overnight, or sits at 50 °F and sprouts by December. A week of readings costs nothing, and it shows whether the space stays near 33 °F or drifts.
What goes wrong here
A cellar that freezes
Maine winters find the cold spots in a cellar. A frozen carrot looks dull and glassy, and once it thaws it goes limp and mushy, often within a day. Prevent it by watching the thermometer through the first hard cold snap and moving the carrots to the fridge or a warmer corner if the readings fall near freezing. A cellar that never quite stays cold enough is a different problem, and it shows up as sprouting and softening.
A damp autumn
Wet weather at harvest brings mud, splitting and rot. Roots that go into storage with damaged skin or wet soil can start to rot from the wound, and one bad carrot can spoil its neighbors. Pull on a dry day, brush off the soil, and let the roots air out for an hour in the shade before you trim and store them. Sort as you go. Anything cracked, cut by the fork or tunneled goes to the kitchen first, not into storage. What Eats Carrot in Maine, and When covers the damage to look for. University of Maine Cooperative Extension documents the seedcorn maggot and the cabbage maggot among the pests in the state.
A glut nobody can eat
A whole row seeded on one day ripens more or less together. A hundred feet of carrots is a lot to face in a single week of September. Prevention starts in spring. Sow in stages, a couple of weeks apart, so the harvest arrives in smaller batches. Then leave what you cannot eat or store in the ground until you are ready to handle it, and pull only what the fridge and cellar can hold.
Common questions
How do I know a carrot is ready to pull in Maine?
Check the shoulders at the soil line and the fullness of the tops. Count 70 to 100 days from seeding, then pull one root to test. This page does not publish Maine frost dates, so use your own local dates alongside the days from your sowing.
How long do carrots keep after harvest?
Clemson Extension gives about 10 to 14 days for bunched carrots with the tops on, at 33 °F and high humidity. Trimmed roots keep much longer, up to months in the best case, but that is a maximum and not a guarantee.
Do I count the days from transplanting?
No. Carrots are sown in place and are not transplanted. The 70 to 100 days start on the day you seed.
Can I store carrots in a 50 °F basement?
You can, but they will sprout and soften in a fraction of the time they would last at 33 °F. Check the basement with a thermometer. If it runs warm, use the refrigerator for what you can and eat the rest first.