🥕When to Plant Carrot (2026)
Sow directly — carrots hate being transplanted. Tolerates light frost.
- Type: Cool-season
- Method: Direct sow
- Days to harvest: 70
- Spacing: 3" apart
- Sun: Full sun
- Companions: onion, lettuce, tomato
Is Carrot right for your USDA zone?
Carrot is a cool-season crop, which means it thrives in the mild temperatures of spring and fall. Gardeners in zones 3a through 7b get the longest carrot season — you can plant in early spring and again in late summer for a fall harvest. In warmer zones (8a-10b), grow carrot as a winter crop from October through February when temperatures are coolest.
Carrot needs about 70 days from sowing to harvest, so any zone with at least 84frost-free days can grow it successfully. Check your zone's specific dates in the table below.
How to grow carrot
Carrot grows best when direct-sown right where it will mature, because it dislikes having its roots disturbed. Give each plant 3 inches of room in full sun, and keep the soil consistently moist while seeds germinate and plants establish.
Expect roughly 70 days to your first harvest. Watch for carrot fly, wireworm, the most common pests of carrot, and scout plants weekly so you can act early. Loose, stone-free soil to at least 12 inches deep is non-negotiable—compacted or rocky soil produces forked, twisted carrots. Mix sand into heavy clay and remove all pebbles larger than a pea.
Troubleshooting carrot
Carrot rust fly maggots tunnel through roots leaving rusty-brown trails. The fly is attracted by the scent of thinning—use row cover from sowing to harvest, and thin on windy days only.
Growing carrot in containers
Deep containers (12+ inches) are essential. Choose shorter varieties like 'Paris Market' (round, 2 inches) or 'Little Finger' (4 inches) for standard pots. A 5-gallon bucket can grow 15-20 carrots.
Carrot planting dates by zone (2026)
| Zone | Start Indoors | Sow / Transplant | Harvest From |
|---|---|---|---|
| Zone 3a | — | Apr 24 | Jul 3 |
| Zone 3b | — | Apr 24 | Jul 3 |
| Zone 4a | — | Apr 19 | Jun 28 |
| Zone 4b | — | Apr 14 | Jun 23 |
| Zone 5a | — | Apr 9 | Jun 18 |
| Zone 5b | — | Apr 4 | Jun 13 |
| Zone 6a | — | Mar 30 | Jun 8 |
| Zone 6b | — | Mar 25 | Jun 3 |
| Zone 7a | — | Mar 20 | May 29 |
| Zone 7b | — | Mar 15 | May 24 |
| Zone 8a | — | Mar 4 | May 13 |
| Zone 8b | — | Feb 22 | May 3 |
| Zone 9a | — | Feb 4 | Apr 15 |
| Zone 9b | — | Jan 20 | Mar 31 |
| Zone 10a | — | Jan 10 | Mar 21 |
| Zone 10b | — | Dec 25 | Mar 5 |
Carrot planting FAQ
When is the best time to plant carrot?
Carrot is a cool-season crop. Plant it in early spring as soon as the soil can be worked, and again in late summer for a fall harvest. It tolerates light frost. Find the exact date for your USDA zone in the table below.
How long does carrot take to grow?
Carrot takes about 70 days from sowing to first harvest. It is best direct-sown rather than transplanted.
How far apart should I space carrot?
Space carrot about 3 inches apart in full sun. Proper spacing gives roots room to spread and improves airflow, which reduces disease.
What is the best growing tip for carrot?
Loose, stone-free soil to at least 12 inches deep is non-negotiable—compacted or rocky soil produces forked, twisted carrots. Mix sand into heavy clay and remove all pebbles larger than a pea.
What are common problems with carrot?
Carrot rust fly maggots tunnel through roots leaving rusty-brown trails. The fly is attracted by the scent of thinning—use row cover from sowing to harvest, and thin on windy days only.
Can I grow carrot in a container?
Deep containers (12+ inches) are essential. Choose shorter varieties like 'Paris Market' (round, 2 inches) or 'Little Finger' (4 inches) for standard pots. A 5-gallon bucket can grow 15-20 carrots.
Can I plant carrot for a second harvest?
Yes—sow a fall crop in mid to late July for zones 5+. Carrots touched by light frost convert starches to sugar and taste noticeably sweeter. Mulch heavily if overwintering in zones 6+.
What grows well with carrot?
Good companion plants for carrot are onion, lettuce, tomato. Companion planting can deter pests and make better use of garden space. Rotate where you plant carrot each year to keep soil healthy.