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When to Plant Carrots in Stonewall County, TX

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.

Stonewall County, Texas is in USDA Zone 7b. The average last spring frost is March 24 and the first fall frost is November 14, giving you a growing season of approximately 235 days.

At an elevation of 2,417 feet, Stonewall County receives approximately 57.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Carrots may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Carrots will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Carrots root diseases.

Stonewall County, TX (Zone 7b) Long season
235 days
Last Spring Frost March 24
235 growing days
First Fall Frost November 14

Stonewall County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (134 days to spare)
Transplant: Mar 17 🍅 Harvest: May 19 – Jun 23
Recommended (50%) ✓ Fits season (137 days to spare)
Transplant: Mar 24 🍅 Harvest: May 26 – Jun 30
Safe Start (90%) ✓ Fits season (127 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Jul 22

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 Stonewall County

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

Soil pH

Your soil pH (7.2โ€“8.2) is more alkaline than Carrots prefers (6.0โ€“6.8). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Stonewall County warms quickly in spring but drains fast. Carrots will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting 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 235-day season

Sow every 6.9 weeks. Last sowing by Aug 26 to harvest before frost.

For a dedicated fall crop, sow by Sep 05.

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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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€” 3.4" 0" โ„๏ธ Dormant
Feb โ€” 3.2" 0" โ„๏ธ Dormant
Mar 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Apr 3.5" 2.1" 1.4" ๐Ÿ’ง Light watering
May 3.5" 1.3" 2.2" ๐Ÿšฟ Regular watering
Jun 3.5" 2.3" 1.2" ๐Ÿ’ง Light watering
Jul 3.5" 10" 0" โœ… Rainfall sufficient
Aug 3.5" 12.4" 0" โœ… Rainfall sufficient
Sep 3.5" 7.7" 0" โœ… Rainfall sufficient
Oct 3.5" 4.6" 0" โœ… Rainfall sufficient
Nov 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Dec โ€” 4.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Stonewall 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 ~1,645 GDD — county provides 5,522 GDD Excellent fit

Carrots Planting Timeline โ€” Stonewall County, TX

Carrots Planting Calendar

Activity When Date Range
Direct Sow March 10 Mar 10 โ€“ Mar 31
Harvest May 12 May 12 โ€“ Jun 16
Fall Sowing September 5 Sep 5 โ€“ Sep 19

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 โ€”
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: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

235 days in Stonewall County

Growing Tips for Carrots in Stonewall County

Direct sow Carrots outdoors after March 24 in Stonewall County when soil has warmed and frost danger has passed.

Sandy soil in Stonewall County dries quickly โ€” mulch Carrots with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 98ยฐF in Stonewall County, provide afternoon shade for Carrots and water deeply in the morning.

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 Stonewall County, TX?

Stonewall County is in Zone 7b with an average last frost of March 24. Plan your Carrots planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Stonewall County, TX?

Stonewall County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 24 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Stonewall County gardeners in Zone 7b 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 Stonewall County, TX. Local conditions may vary. Last updated: April 2026.