Zone 4 · Root Vegetables Growing Guide

When to Plant Carrot
in Zone 4

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
Apr 15 – Jun 30
Start indoors
Direct sow
Last Frost
~May 1
Days to harvest
70–80 days
Difficulty
Medium
Plant now — Zone 4
Harvest window: Jul – Nov

Planting Calendar

In Zone 4, Carrot should be planted outdoors Apr 15 – Jun 30, after the average last frost date of approximately May 1.

Can sow every 3 weeks through June for continuous harvest. Fall carrots are sweeter.

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 4

Can sow every 3 weeks through June for continuous harvest. Fall carrots are sweeter.

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 4, direct sow carrot outdoors Apr 15 – Jun 30 after your last frost date of approximately May 1. Can sow every 3 weeks through June for continuous harvest. Fall carrots are sweeter.
Zone 4 has an average last spring frost of approximately May 1 and a first fall frost around Oct 1. 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 4. Expected harvest window: Jul – Nov.

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