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When to Plant Carrots in Cheshire County, NH

Cheshire County, New Hampshire Zone 6a May

May in the garden — Cheshire County, New Hampshire

Your Cheshire County, New Hampshire garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost May 8
Avg. first frost October 10
Soil temp (4") 57°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
Get ahead of June
  • 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.

Cheshire County, New Hampshire is in USDA Zone 6a. The average last spring frost is May 8 and the first fall frost is October 10, giving you a growing season of approximately 155 days.

At an elevation of 708 feet, Cheshire County receives approximately 47 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Carrots during the growing season.

Cheshire County, NH (Zone 6a) Moderate season
155 days
Last Spring Frost May 8
155 growing days
First Fall Frost October 10
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Cheshire County Soil Profile

Soil Type

Silt Loam

Soil pH

4.8-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (59 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 2 – Aug 6
Recommended (50%) ✓ Fits season (57 days to spare)
Transplant: May 8 🍅 Harvest: Jul 10 – Aug 14
Safe Start (90%) ✓ Fits season (60 days to spare)
Transplant: May 18 🍅 Harvest: Jul 20 – Aug 24

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 Cheshire County

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

Soil pH

Your soil pH (4.8–6.5) is more acidic than Carrots prefers (6.0–6.8). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Cheshire County is excellent for Carrots — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.1%). 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

2
successive plantings in your 155-day season

Sow every 6.9 weeks. Last sowing by Jul 22 to harvest before frost.

For a dedicated fall crop, sow by Aug 01.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.3″/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 3.1" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 3.4" 0" ❄️ Dormant
Apr 4.4" 0" ❄️ Dormant
May 3.5" 3.8" 0" ✅ Rainfall sufficient
Jun 3.5" 4.8" 0" ✅ Rainfall sufficient
Jul 3.5" 4.5" 0" ✅ Rainfall sufficient
Aug 3.5" 3.9" 0" ✅ Rainfall sufficient
Sep 3.5" 4.1" 0" ✅ Rainfall sufficient
Oct 3.5" 4.4" 0" ✅ Rainfall sufficient
Nov 3.5" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Cheshire 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 ~1,015 GDD — county provides 2,247 GDD Excellent fit

Carrots Planting Timeline — Cheshire County, NH

Carrots Planting Calendar

Activity When Date Range
Direct Sow April 24 Apr 24 – May 15
Harvest June 26 Jun 26 – Jul 31
Fall Sowing August 1 Aug 1 – Aug 15

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Direct Sow
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 · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–6.8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6a

📆 Growing Season

155 days in Cheshire County

Growing Tips for Carrots in Cheshire County

Direct sow Carrots outdoors after May 08 in Cheshire 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 →

🌾 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 Cheshire County, NH?

Cheshire County is in Zone 6a with an average last frost of May 8. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cheshire County, NH?

Cheshire County, New Hampshire is in USDA Hardiness Zone 6a. The average last spring frost is May 8 and first fall frost is October 10.

🌱

Your Cheshire County Garden Planner — Free

A 24-page printable planner built for Cheshire County (Zone 6a). 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 Cheshire County, NH. 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.