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When to Plant Carrots in Edwards 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.

Edwards County, Texas is in USDA Zone 8a. The average last spring frost is April 2 and the first fall frost is November 8, giving you a growing season of approximately 220 days.

At an elevation of 4,265 feet, Edwards County receives approximately 61.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 102ยฐF, 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.

Edwards County, TX (Zone 8a) Long season
220 days
Last Spring Frost April 2
220 growing days
First Fall Frost November 8

Edwards County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Transplant: Mar 19 🍅 Harvest: May 21 – Jun 25
Recommended (50%) ✓ Fits season (122 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Jul 9
Safe Start (90%) ✓ Fits season (129 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 20 – Jul 25

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 Edwards County

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

Soil pH

Your soil pH (7.8โ€“8.1) is more alkaline than Carrots prefers (6.0โ€“6.8). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Edwards 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 (1.1%). 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 220-day season

Sow every 6.9 weeks. Last sowing by Aug 20 to harvest before frost.

For a dedicated fall crop, sow by Aug 30.

Plant Water Budget

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

Water stress score is 8/10 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€” 4.5" 0" โ„๏ธ Dormant
Feb โ€” 3.3" 0" โ„๏ธ Dormant
Mar โ€” 3.3" 0" โ„๏ธ Dormant
Apr 3.5" 2" 1.5" ๐Ÿ’ง Light watering
May 3.5" 1.3" 2.2" ๐Ÿšฟ Regular watering
Jun 3.5" 1.8" 1.7" ๐Ÿ’ง Light watering
Jul 3.5" 11.5" 0" โœ… Rainfall sufficient
Aug 3.5" 13.8" 0" โœ… Rainfall sufficient
Sep 3.5" 7" 0" โœ… Rainfall sufficient
Oct 3.5" 4.9" 0" โœ… Rainfall sufficient
Nov 3.5" 3.6" 0" โœ… Rainfall sufficient
Dec โ€” 4.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Nov in Edwards 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 ~1,855 GDD — county provides 5,830 GDD Excellent fit

Carrots Planting Timeline โ€” Edwards County, TX

Carrots Planting Calendar

Activity When Date Range
Direct Sow March 19 Mar 19 โ€“ Apr 9
Harvest May 21 May 21 โ€“ Jun 25
Fall Sowing August 30 Aug 30 โ€“ Sep 13

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow
April Direct Sow
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: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

220 days in Edwards County

Growing Tips for Carrots in Edwards County

Direct sow Carrots outdoors after April 02 in Edwards County when soil has warmed and frost danger has passed.

Sandy soil in Edwards 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 102ยฐF in Edwards 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 Edwards County, TX?

Edwards County is in Zone 8a with an average last frost of April 2. Plan your Carrots planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Edwards County, TX?

Edwards County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is April 2 and first fall frost is November 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Edwards 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 Edwards County, TX. Local conditions may vary. Last updated: April 2026.