Blog

When to Plant Carrots in El Dorado County, CA

El Dorado County, California Zone 9b May

Your May game plan for El Dorado County, California

Each item below is timed to El Dorado County, California's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 11
Avg. first frost November 22
Soil temp (4") 62°F
Watering Critical
Pest pressure Moderate
Daylight 14.1 hrs
  1. Bring in the carrots

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

June will be here before you know it — start on
  • First harvests: carrots

Instant PDF download. No spam, unsubscribe any time.

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.

El Dorado County, California is in USDA Zone 9b. The average last spring frost is April 11 and the first fall frost is November 22, giving you a growing season of approximately 225 days.

At an elevation of 2,714 feet, El Dorado County receives approximately 41 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Carrots to ensure they mature before fall.

El Dorado County, CA (Zone 9b) Long season
225 days
Last Spring Frost April 11
225 growing days
First Fall Frost November 22

El Dorado County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Transplant: Mar 29 🍅 Harvest: May 31 – Jul 5
Recommended (50%) ✓ Fits season (127 days to spare)
Transplant: Apr 11 🍅 Harvest: Jun 13 – Jul 18
Safe Start (90%) ✓ Fits season (127 days to spare)
Transplant: May 7 🍅 Harvest: Jul 9 – Aug 13

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 El Dorado County

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

Soil pH

Your soil pH (6.3–7.2) overlaps with Carrots's range (6.0–6.8), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Carrots.

How to Plant Carrots

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Carrots

4
successive plantings in your 225-day season

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

For a dedicated fall crop, sow by Sep 27.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.8″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 83 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 7.5" 0" ❄️ Dormant
Feb 9.2" 0" ❄️ Dormant
Mar 7" 0" ❄️ Dormant
Apr 3.5" 3.4" 0.1" 💧 Light watering
May 3.5" 1.1" 2.4" 🚿 Regular watering
Jun 3.5" 0.2" 3.3" 🚿 Regular watering
Jul 3.5" 0" 3.5" 🚿 Regular watering
Aug 3.5" 0" 3.5" 🚿 Regular watering
Sep 3.5" 0.5" 3" 🚿 Regular watering
Oct 3.5" 1.6" 1.9" 🚿 Regular watering
Nov 3.5" 3.8" 0" ✅ Rainfall sufficient
Dec 6.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in El Dorado 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 ~858 GDD — county provides 2,756 GDD Excellent fit

Carrots Planting Timeline — El Dorado County, CA

Carrots Planting Calendar

Activity When Date Range
Direct Sow March 21 Mar 21 – Apr 11
Harvest May 23 May 23 – Jun 27
Fall Sowing September 27 Sep 27 – Oct 11

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Only during dry spells

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–6.8 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

225 days in El Dorado County

Growing Tips for Carrots in El Dorado County

Direct sow Carrots outdoors after April 11 in El Dorado 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 El Dorado County, CA?

El Dorado County is in Zone 9b with an average last frost of April 11. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.

What planting zone is El Dorado County, CA?

El Dorado County, California is in USDA Hardiness Zone 9b. The average last spring frost is April 11 and first fall frost is November 22.

🌱

Your El Dorado County Garden Planner — Free

A 24-page printable planner built for El Dorado County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for El Dorado County, CA. 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.