How to Grow Nelson Carrot
Raphanus sativus
Nelson Carrot is a reliable heirloom root vegetable prized for its crisp texture and sweet flavor. Gardeners grow this variety to enjoy fresh harvests in cool weather gardens or containers throughout the growing season.
📷 Wikimedia CommonsStarting Nelson Carrot: indoors or direct sow?
🌾 Sow directly in the garden — Nelson Carrot is not usually started indoors.
This variety is best direct-sown into the garden rather than started indoors and transplanted, as carrot seeds have poor germination rates when moved.
Soil, care & harvest
Prepare loose, well-draining soil with a pH between 6.0 and 6.8, as compacted earth hinders root development. Sow seeds directly outdoors 2 to 6 weeks before your last spring frost date, since this is a cool-season crop that tolerates light frosts. Press seeds gently into the soil at a depth of about half an inch. Expect germination to occur within 10 to 17 days under suitable conditions.
Thin seedlings so plants are spaced 2 to 3 inches apart to allow roots room to expand without competition. Keep soil consistently moist with about 1 inch of water per week, avoiding wetting the foliage to reduce disease risk. Apply a light layer of mulch around the base to retain moisture and suppress weeds, but keep it away from the crown.
Watch for pests like carrot fly, aphids, and wireworms; use row covers early in the season to deter flying insects. Monitor for Alternaria leaf blight or bacterial soft rot by ensuring good air circulation and avoiding overhead watering. Harvest roots approximately 21 days after sowing when they reach desired size, pulling gently from the soil.
When to Plant Nelson Carrot
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | June – July | June – September |
| Zone 2 | — | May – July | June – September |
| Zone 3 | — | May – June | May – October |
| Zone 4 | — | April – June | May – October |
| Zone 5 | — | April – May | May – November |
| Zone 6 | — | April – May | April – November |
| Zone 7 | — | March – May | April – November |
| Zone 8 | — | March – April | March – December |
| Zone 9 | — | February – March | February – December |
| Zone 10 | — | January – March | February – December |
| Zone 11 | — | January – February | January – December |
| Zone 12 | — | January – February | January – December |
| Zone 13 | — | January – February | January – December |
Companion Plants for Nelson Carrot
✓ Good companions
Repels carrot rust flies and aphids with their strong onion scent
Mask carrot scent from carrot rust flies and improve soil structure
Shallow roots don't compete, provides ground cover and efficient space use
Release compounds that repel nematodes and other soil-dwelling pests
Break up compacted soil for carrot root development and mature quickly
Strong aromatic oils repel carrot flies and other harmful insects
Deters carrot rust flies and cabbage moths with its intense fragrance
Root vegetables and nightshades complement each other's growth patterns
✗ Keep away from
May inhibit carrot germination and early growth through allelopathic effects
Can stunt carrot growth and attract carrot rust flies when flowering
Same family susceptible to identical pests and diseases, creating concentrated problems
Nutrition Facts
Per 100g serving (USDA FoodData Central)
