Zone 10 · Root Vegetables Growing Guide

When to Plant Carrot
in Zone 10

Slow to germinate but rewarding. Loose, deep soil is the key — rocky or clay soil causes forked, stunted roots. Raised beds work well.

Plant outdoors
Sep 15 – Jan 15
Start indoors
Direct sow
Last Frost
~Jan 15
Days to harvest
70–80 days
Difficulty
Medium
Late season — Zone 10
Harvest window: Nov – Mar

Planting Calendar

In Zone 10, Carrot should be planted outdoors Sep 15 – Jan 15, after the average last frost date of approximately Jan 15.

Cool season only. Plant September through January for harvest November through April.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Regular
Spacing
3–4 inches
Soil
Deep, loose, sandy loam — no rocks or clumps
Days to maturity
70–80 days
Soil pH
6.0–6.8
plant tip · Zone 10

Cool season only. Plant September through January for harvest November through April.

Feeding Schedule

How often
once at planting
Feed type
low nitrogen (5-10-10)
Key timing
at planting only

Avoid high nitrogen — it produces forked, hairy roots. A low-nitrogen feed worked into soil before sowing is ideal.

Succession Planting

Sow every 3 weeks

Sow every 3 weeks from early spring through midsummer. Carrots also store in the ground in mild zones, so successive sowings give you a very long harvest window.

Companion Planting for Carrot

What you plant next to carrot makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Lettuce
  • Onions
  • Rosemary
  • Tomatoes
Keep away from
  • Dill
  • Parsnips

These guides get better when growers like you contribute. If something’s wrong or you’ve learned something worth sharing, we’d love to hear it.

What needs correcting?

What should it say?

Your zone (optional)

Thanks — we'll review this and update the guide if needed.

Your growing tip for Carrot

Your name (optional)

Your zone (optional)

Tips are reviewed before publishing. Accepted tips earn you a Founding Grower badge when the plant app launches.

Thanks for contributing! We'll review your tip and be in touch before launch.

Common questions

In Zone 10, carrot is a fall-planted crop. Plant outdoors Sep 15 – Jan 15 once temperatures cool in autumn. It overwinters and is ready to harvest around Nov – Mar. No last frost consideration — plant before the ground freezes.
Zone 10 has an average last spring frost of approximately Jan 15 and a first fall frost around Dec 31. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for carrot include Lettuce, Onions, Rosemary, Tomatoes. Avoid planting near Dill, Parsnips, which can compete for nutrients or attract pests.
Carrot typically takes 70–80 days from transplant or direct sow to harvest in Zone 10. Expected harvest window: Nov – Mar.

Recipes using this crop

Great ways to use your harvest — see all recipes

Sides & Snacks

Honey Roasted Carrots with Thyme

45 min · easy

Mains

Carrot & Ginger Soup

45 min · easy

Free app · iOS February 2028

Track your Carrot in plant

Get a live traffic light for every crop in your garden — zone-aware planting calendar, real-time weather alerts, and a community of growers near you.

Be first to back on Kickstarter and lock in the founding price.

Carrot in other zones
Crop Guides