When to Plant Carrots in USDA Zone 10b
This month in Zone 10b
Here's what deserves your attention in Zone 10b this month. Everything below is tailored to Zone 10b and timed around your local frost dates.
-
Basket week: carrots
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
Coming up in May — start thinking about
- First harvests: carrots
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.
In Zone 10b, the average last spring frost is around January 1 and the first fall frost is around December 31, giving you a growing season of approximately 364 days.
Carrots Planting Timeline — Zone 10b
Where Is USDA Zone 10b?
The map below highlights the states that contain Zone 10b. Click any state to see the Carrots planting schedule for that location.
Carrots Planting Calendar — Zone 10b
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | December 11 | Dec 11 – Jan 1 |
| Harvest | February 12 | Feb 12 – Mar 19 |
| Fall Sowing | November 5 | Nov 5 – Nov 19 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Harvest |
| March | Harvest |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | Fall Sowing |
| December | Direct Sow |
Free Zone 10b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 10b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · Moderate — regular watering
Days to Maturity
60–80 days
Soil pH
6 – 6.8
Zone Temperature Range
°F to °F average annual minimum
Growing Season
364 days (Zone average)
Planting Specifications
| Planting Depth | 0.5 inches |
| Plant Spacing | 6 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Carrots in Zone
Sow every 6.9 weeks for continuous harvest throughout the season.
Growing Tips for Carrots in Zone
Zone has a short growing season (~364 days). Start Carrots indoors early and use season-extension techniques like row covers and cold frames.
Carrots needs approximately 0.8 inches of water per week during active growth. Adjust watering based on your local rainfall and soil drainage.
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
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Saving Carrots Seeds
Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial — requires two seasons.
Recommended for Your Garden
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Keep your garden organized with durable, weather-resistant plant labels.
Related Plants
Carrots in Other Zones
Carrots by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Carrots in Zone 10b?
In Zone 10b, plan your Carrots planting around the average last frost date of January 1. Direct sow outdoors around December 11.
Can Carrots grow in Zone 10b?
Yes, Carrots can grow well in Zone 10b, hardy in USDA zones 3a through 10b. Zone 10b has a growing season of approximately 364 days, which is sufficient for Carrots (60-80 days to maturity).
When can I harvest Carrots in Zone 10b?
In Zone 10b, expect to harvest Carrots from February 12 – March 19. Carrots takes 60-80 days from planting to harvest.
What is the last frost date for Zone 10b?
The average last spring frost in Zone 10b is around January 1, and the first fall frost is around December 31. This gives a growing season of approximately 364 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Carrots?
Good companion plants for Carrots include Lettuce, Onion, Peas, Rosemary. These companions can help with pest control, pollination, and nutrient sharing.
Your Free Printable Garden Planner
A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.