How to Grow Nantes Improved Carrot
Nantes Improved Carrot
Daucus carota subsp. sativus
vegetableNantes Improved is a classic, high-quality carrot variety known for its uniform, cylindrical roots and sweet, tender flesh. This intermediate-length carrot (6-7 inches) is excellent for fresh eating, cooking, and storage, making it a reliable choice for home and market gardeners alike.
When should you plant Nantes Improved Carrot in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Nantes Improved Carrot timeline · Pittsburgh, PA (Zone 6b)
-
Plant Nantes Improved Carrot
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Nantes Improved Carrot
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Nantes Improved Carrot dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8; can be grown year-round in zones 9+ with proper timing
Sign up free to see if Nantes Improved Carrot grows in your zone — and get a personalized planting timeline.
Get my Nantes Improved Carrot timeline →Growth Stages
Germination & Seedling
2-3 weeksTiny seedlings emerge with fine, feathery leaves. Plants are fragile and susceptible to damping off.
Keep soil moist but not waterlogged. Thin seedlings to 2 inches apart at 2-3 weeks. Use row cover to prevent carrot flies. Avoid overhead watering.
Vegetative Growth
3-4 weeksFerny foliage develops above ground while underground roots begin to swell. Plants are 4-6 inches tall with fine green leaves.
Continue thinning to proper spacing. Keep soil consistently moist. Mulch lightly to retain moisture and prevent green shoulders (exposed root tops). Weed carefully to avoid root disturbance.
Root Expansion
4-5 weeksThe characteristic orange cylindrical root enlarges while foliage continues to develop. Roots reach 3-4 inches long.
Maintain consistent watering to prevent splitting and woody texture. Hill soil around roots to prevent greening. Apply carrot fly barriers or netting. Fertilize lightly with balanced fertilizer if needed.
Maturation & Harvest Ready
2-3 weeks (harvest window)Roots reach full 6-7 inches length with uniform diameter and deep orange color. Roots are tender, sweet, and at peak flavor.
Stop fertilizing. Carrots can remain in ground for extended storage in cool climates. Check root size by gently uncovering shoulder of root. Harvest before severe frost in northern zones.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Row covers, netting, or fine mesh until 3-4 weeks old. Companion plant with onions or leeks. Remove affected roots. Rotating crops annually is essential.
-
Row covers during spring. Remove affected roots immediately. Clean up garden debris in fall. Crop rotation.
-
and
Hand-pick, especially at night. Beer traps. Copper barriers. Remove hiding spots and excess mulch.
-
Strong water spray to dislodge. Insecticidal soap. Encourage beneficial insects like ladybugs.
-
Crop rotation (3-4 years). Resistant varieties in affected soils. Solarization of beds.
Uses
Fresh Eating & Cooking
CulinaryNantes carrots are prized for their sweet, tender flesh and superior flavor. Excellent raw in salads, juiced, steamed, roasted, or cooked in soups and stews. [source]
Storage & Preservation
CulinaryStores exceptionally well in cool conditions for 3-6 months. Can be frozen, canned, or pickled for long-term use. [source]
Nutritional Benefits
MedicinalHigh in beta-carotene (vitamin A), fiber, and antioxidants. Regular carrot consumption supports vision, immune function, and digestive health. [source]
Culinary Coloring Agent
HouseholdCarrot juice and puree can be used as natural food coloring in baking and cooking applications. [source]
Wildlife Food
WildlifeThe ferny foliage and sweet roots attract pollinators and beneficial insects. Leftover carrots in the garden provide food for wildlife. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when roots reach 0.5-0.75 inches shoulder diameter, typically 65-75 days from sowing. Loosen soil with a fork before pulling to avoid breaking roots. Carrots can be harvested smaller for tenderness or left to mature fully. In mild climates, leave in ground for storage; in cold areas, dig before heavy frost and store in cool, humid conditions (32-40°F). Remove green tops before storage to prevent wilting. Carrots improve in sweetness after frost due to starch conversion to sugars.
Fun Facts
- 🌱 Nantes Improved was developed in France and remains one of the most popular carrot varieties worldwide. Its uniform shape and sweet flavor made it the gold standard for commercial and home gardeners for decades.
- 🌱 Carrots weren't always orange—medieval varieties were purple, white, and yellow. The orange carrot as we know it today was developed in the Netherlands in the 17th century, and Nantes is a direct descendant of that breeding work.
- 🌱 Carrots can be stored in the ground over winter in many climates and will actually become sweeter as cold temperatures convert starches to sugars. Farmers sometimes leave them in the field as living storage.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Nantes Improved Carrot planting timeline
Tell us your zip code and we'll calculate exactly when to start Nantes Improved Carrot seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Nantes Improved Carrot timeline →