🥕
🥕 Growing Carrot in Zone 4b
Zone 4b has cold winters and a moderate growing season. Timing is key for Carrot in this zone. Last frost: May 1. First frost: Oct 5.
Planting Calendar
Season: May 1 – Oct 5 (157 days) · Succession: plant every 3 weeks (up to 4x)
When to Plant Carrot in Zone 4b
Sow Seeds Outdoors: Apr 10
Direct sow Carrot seeds outdoors around Apr 10. Soil temperature should be at least 45°F. Space at 16/sqft (3" apart).
Harvest: Jun 19
First harvest approximately Jun 19 (~70 days from planting). Continue harvesting until first frost (Oct 5). Carrot can overwinter in mild climates for continued harvest.
Fall Planting: Jul 27
For a fall harvest, plant Carrot around Jul 27 (10 weeks before first frost).
Companion Planting
Carrot in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Carrot in Zone 4b?
Direct sow Carrot outdoors around Apr 10. Harvest around Jun 19.
What is the last frost date for Zone 4b?
The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.
Can I grow Carrot in Zone 4b?
Yes. Carrot needs 70 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 4 successions.
What is the best month to plant Carrot in Zone 4b?
The best time to plant Carrot in Zone 4b is around Apr 10, when soil temperatures are suitable and frost risk has passed.
What companion plants grow well with Carrot?
Good companion plants for Carrot include Onions, Chives, Rosemary, Tomatoes, Leeks. Avoid planting Carrot near Dill, Parsnips.
How long does Carrot take to harvest?
Carrot takes approximately 70 days from planting to harvest. In Zone 4b, expect your first harvest around Jun 19.
Plan Your Carrot Garden
Track Carrot from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Carrot Growing Guide