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When to Plant Carrots in Wells County, ND

Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.

Wells County, North Dakota is in USDA Zone 3b. The average last spring frost is May 11 and the first fall frost is September 29, giving you a growing season of approximately 141 days.

At an elevation of 796 feet, Wells County receives approximately 29.3 inches of rainfall annually with predominantly loam soil. Summer highs average 80ยฐF, so choose short-season varieties of Carrots to ensure they mature before fall.

Wells County, ND (Zone 3b) Short season
141 days
Last Spring Frost May 11
141 growing days
First Fall Frost September 29

Wells County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Transplant: May 3 🍅 Harvest: Jul 5 – Aug 9
Recommended (50%) ✓ Fits season (43 days to spare)
Transplant: May 11 🍅 Harvest: Jul 13 – Aug 17
Safe Start (90%) ✓ Fits season (46 days to spare)
Transplant: May 20 🍅 Harvest: Jul 22 – Aug 26

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Wells County

How your county's soil matches Carrots's growing requirements.

Soil pH

Your soil pH (6.3โ€“7.8) is more alkaline than Carrots prefers (6.0โ€“6.8). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Wells County is excellent for Carrots โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.8%). Annual compost additions will help Carrots.

How to Plant Carrots

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Succession Planting Carrots

2
successive plantings in your 141-day season

Sow every 6.9 weeks. Last sowing by Jul 11 to harvest before frost.

For a dedicated fall crop, sow by Jul 07.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Carrots

Carrots needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Carrots Needs Rainfall You Supplement Action
Jan โ€” 0.7" 0" โ„๏ธ Dormant
Feb โ€” 0.9" 0" โ„๏ธ Dormant
Mar โ€” 1.9" 0" โ„๏ธ Dormant
Apr โ€” 3" 0" โ„๏ธ Dormant
May 3.5" 4.8" 0" โœ… Rainfall sufficient
Jun 3.5" 5.1" 0" โœ… Rainfall sufficient
Jul 3.5" 3.6" 0" โœ… Rainfall sufficient
Aug 3.5" 3.6" 0" โœ… Rainfall sufficient
Sep 3.5" 2.6" 0.9" ๐Ÿ’ง Light watering
Oct โ€” 1.6" 0" โ„๏ธ Dormant
Nov โ€” 0.9" 0" โ„๏ธ Dormant
Dec โ€” 0.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Sep in Wells County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Carrots Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Carrots needs ~700 GDD — county provides 1,410 GDD Excellent fit

Carrots Planting Timeline โ€” Wells County, ND

Carrots Planting Calendar

Activity When Date Range
Direct Sow May 4 May 4 โ€“ May 25
Harvest July 6 Jul 6 โ€“ Aug 10
Fall Sowing July 7 Jul 7 โ€“ Jul 21

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Direct Sow
June โ€”
July Fall Sowing Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“80 days

๐Ÿงช Soil pH

Needs 6โ€“6.8 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 3b

๐Ÿ“† Growing Season

141 days in Wells County

Growing Tips for Carrots in Wells County

Direct sow Carrots outdoors after May 11 in Wells County when soil has warmed and frost danger has passed.

Common pests for Carrots in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.

Companion Planting

Good Companions

Avoid Planting Near

  • Dill
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

๐ŸŒพ Save Your Own Carrots Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Replant roots for 2nd year flowers. Harvest umbels when brown.
Storage Store airtight; viable 3 years at 35ยฐF, under 50% humidity.

Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial โ€” requires two seasons.

Frequently Asked Questions

When should I plant Carrots in Wells County, ND?

Wells County is in Zone 3b with an average last frost of May 11. Plan your Carrots planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wells County, ND?

Wells County, North Dakota is in USDA Hardiness Zone 3b. The average last spring frost is May 11 and first fall frost is September 29.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wells County gardeners in Zone 3b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wells County, ND. Local conditions may vary. Last updated: April 2026.