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When to Plant Carrots in Roosevelt County, NM

Roosevelt County, New Mexico Zone 7b May

Your May game plan for Roosevelt County, New Mexico

Here's what deserves your attention in Roosevelt County, New Mexico this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost April 18
Avg. first frost October 22
Soil temp (4") 57°F
Watering Critical
Pest pressure Moderate
Daylight 13.8 hrs
June prep starts now
  • First harvests: carrots

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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.

Roosevelt County, New Mexico is in USDA Zone 7b. The average last spring frost is April 18 and the first fall frost is October 22, giving you a growing season of approximately 187 days.

At an elevation of 3,802 feet, Roosevelt County receives approximately 18 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 89°F, providing good warmth for Carrots during the growing season. Sandy soil warms quickly in spring — great for early planting — but Carrots will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Carrots successfully. Mulch heavily to conserve soil moisture.

Roosevelt County, NM (Zone 7b) Moderate season
187 days
Last Spring Frost April 18
187 growing days
First Fall Frost October 22
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Roosevelt County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (87 days to spare)
Transplant: Apr 13 🍅 Harvest: Jun 15 – Jul 20
Recommended (50%) ✓ Fits season (89 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 20 – Jul 25
Safe Start (90%) ✓ Fits season (93 days to spare)
Transplant: May 2 🍅 Harvest: Jul 4 – Aug 8

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 Roosevelt County

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

Soil pH

Your soil pH (7.2–8.4) is more alkaline than Carrots prefers (6.0–6.8). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Carrots.

Organic Matter

Organic matter is low (0.7%). 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

3
successive plantings in your 187-day season

Sow every 6.9 weeks. Last sowing by Aug 03 to harvest before frost.

For a dedicated fall crop, sow by Aug 13.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.4″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,270 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — 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 1.3" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.1" 0" ❄️ Dormant
Apr 3.5" 0.5" 3" 🚿 Regular watering
May 3.5" 0.3" 3.2" 🚿 Regular watering
Jun 3.5" 0.6" 2.9" 🚿 Regular watering
Jul 3.5" 3.3" 0.2" 💧 Light watering
Aug 3.5" 3.9" 0" ✅ Rainfall sufficient
Sep 3.5" 2.6" 0.9" 💧 Light watering
Oct 3.5" 1.4" 2.1" 🚿 Regular watering
Nov 1" 0" ❄️ Dormant
Dec 1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Roosevelt County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,172 GDD — county provides 3,132 GDD Excellent fit

Carrots Planting Timeline — Roosevelt County, NM

Carrots Planting Calendar

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest June 6 Jun 6 – Jul 11
Fall Sowing August 13 Aug 13 – Aug 27

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May
June Harvest
July Harvest
August Fall Sowing
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · 2-3 times/week

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–6.8 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7b

📆 Growing Season

187 days in Roosevelt County

Growing Tips for Carrots in Roosevelt County

Direct sow Carrots outdoors after April 18 in Roosevelt County when soil has warmed and frost danger has passed.

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

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 →

🌾 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 35°F, under 50% humidity.

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

Frequently Asked Questions

When should I plant Carrots in Roosevelt County, NM?

Roosevelt County is in Zone 7b with an average last frost of April 18. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.

What planting zone is Roosevelt County, NM?

Roosevelt County, New Mexico is in USDA Hardiness Zone 7b. The average last spring frost is April 18 and first fall frost is October 22.

🌱

Your Roosevelt County Garden Planner — Free

A 24-page printable planner built for Roosevelt County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.