Root Vegetable

When to Plant Carrots in Maine

Patience is the secret ingredient. Carrots are slow to germinate but deliver sweet, crunchy rewards.

The Short Answer

In Maine, soil conditions are an important factor for carrots. Acidic, rocky soils. Blueberries thrive naturally. Raised beds common to deal with rocks. Amendment with lime needed for many vegetables. Direct sow 3 weeks before your last frost date. Carrots can also be planted in fall, 10 weeks before your first frost.

Maine Frost Dates

Your planting dates depend on which part of Maine you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Maine 3b, 4a, 4b May 20 - Jun 5 Sep 10 - Sep 25
Central Maine 4b, 5a May 10 - May 25 Sep 20 - Oct 5
Southern/Coastal Maine 5a, 5b, 6a May 1 - May 15 Sep 25 - Oct 15

Carrots Planting Schedule for Maine

Northern Maine (Zones 3b, 4a, 4b)

Average last frost: May 20 - Jun 5 · Average first frost: Sep 10 - Sep 25

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Central Maine (Zones 4b, 5a)

Average last frost: May 10 - May 25 · Average first frost: Sep 20 - Oct 5

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Southern/Coastal Maine (Zones 5a, 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 15

Direct Sow
3 wks before frost
Fall Planting
10 wks before first frost

Growing Carrots in Maine

Carrots in Maine's Climate

Your cold climate grows outstanding carrots — the sandy soils of northern states warm quickly in spring and the cool fall weather concentrates sugars beautifully. Direct sow from mid-April and succession plant every 3 weeks through mid-July. Fall-sown carrots left in the ground under heavy mulch can be harvested fresh through winter — the soil keeps them crisp while the cold keeps them sweet. This is one crop where cold climates have a genuine advantage.

Soil Considerations for Maine

Acidic, rocky soils. Blueberries thrive naturally. Raised beds common to deal with rocks. Amendment with lime needed for many vegetables. Loose, well-drained soil is especially important for carrots since the edible portion grows underground. If your soil is heavy clay, consider raised beds.

Maine Climate & Growing Season

Short growing season but long summer days help. Maritime influence on coast. Season extension techniques very valuable.

Growing season length varies across Maine: Northern Maine (3b, 4a, 4b) has a last frost around May 20 - Jun 5, while Southern/Coastal Maine (5a, 5b, 6a) sees frost end around May 1 - May 15. This difference matters for carrots — adjust your planting dates to match your specific region.

Growing Tips

Loose, sandy soil is ideal. Rocky or clay soil causes forked roots. Keep soil consistently moist until seeds germinate.

Companion Planting

Plant carrots alongside these companions for better growth:

Peas Lettuce Tomatoes Onions

Keep carrots away from:

Dill

The Bottom Line

Carrots can be grown successfully across Maine, but your exact planting dates depend on which region you're in. Northern Maine gardeners should plan around a May 20 - Jun 5 last frost, while those in Southern/Coastal Maine can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Carrots Growing Guide National planting guide with all states Maine Planting Calendar All plants for Maine Carrots in Alabama Alabama planting dates Carrots in Alaska Alaska planting dates Carrots in Arizona Arizona planting dates Carrots in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

Ready to Start Planting?

Enter your zip code and pick your plant. We'll tell you exactly when to plant, start seeds, and harvest — based on where you live.

Find Your Planting Dates