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When to Plant Carrots in Calhoun County, AR

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.

Calhoun County, Arkansas is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 4, giving you a growing season of approximately 227 days.

At an elevation of 1,246 feet, Calhoun County receives approximately 52.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94ยฐF, providing good warmth for Carrots during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Carrots root diseases.

Calhoun County, AR (Zone 8a) Long season
227 days
Last Spring Frost March 22
227 growing days
First Fall Frost November 4

Calhoun County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (132 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jun 19
Recommended (50%) ✓ Fits season (129 days to spare)
Transplant: Mar 22 🍅 Harvest: May 24 – Jun 28
Safe Start (90%) ✓ Fits season (132 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 11 – Jul 16

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 Calhoun County

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

Soil pH

Your soil pH (5.3โ€“6.9) overlaps with Carrots's range (6.0โ€“6.8), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Carrots.

How to Plant Carrots

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Carrots

4
successive plantings in your 227-day season

Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.

For a dedicated fall crop, sow by Aug 26.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.0″/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€” 3.8" 0" โ„๏ธ Dormant
Feb โ€” 4.6" 0" โ„๏ธ Dormant
Mar 3.5" 5.3" 0" โœ… Rainfall sufficient
Apr 3.5" 3.8" 0" โœ… Rainfall sufficient
May 3.5" 4.4" 0" โœ… Rainfall sufficient
Jun 3.5" 4.1" 0" โœ… Rainfall sufficient
Jul 3.5" 5.2" 0" โœ… Rainfall sufficient
Aug 3.5" 5.5" 0" โœ… Rainfall sufficient
Sep 3.5" 4.1" 0" โœ… Rainfall sufficient
Oct 3.5" 3.5" 0" โœ… Rainfall sufficient
Nov 3.5" 3.9" 0" โœ… Rainfall sufficient
Dec โ€” 4.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Calhoun 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 ~1,435 GDD — county provides 4,653 GDD Excellent fit

Carrots Planting Timeline โ€” Calhoun County, AR

Carrots Planting Calendar

Activity When Date Range
Direct Sow March 8 Mar 8 โ€“ Mar 29
Harvest May 10 May 10 โ€“ Jun 14
Fall Sowing August 26 Aug 26 โ€“ Sep 9

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow
April โ€”
May Harvest
June Harvest
July โ€”
August Fall Sowing
September Fall Sowing
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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

227 days in Calhoun County

Growing Tips for Carrots in Calhoun County

Direct sow Carrots outdoors after March 22 in Calhoun 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 Calhoun County, AR?

Calhoun County is in Zone 8a with an average last frost of March 22. Plan your Carrots planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Calhoun County, AR?

Calhoun County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 4.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Calhoun County gardeners in Zone 8a 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 Calhoun County, AR. Local conditions may vary. Last updated: April 2026.