HybridContainer OK

Cosmic Purple Carrot

Daucus carota 'Cosmic Purple'

Cosmic Purple Carrot growing in a garden

A stunning hybrid carrot that produces 7-inch roots with deep purple skin and bright orange cores that create beautiful rings when sliced. This All-America Selections winner combines exceptional sweetness with eye-catching color, making it perfect for both fresh eating and adding visual drama to dishes. The unique bicolor appearance and crisp texture make it a favorite among gardeners looking to grow something truly special.

Harvest

70-80d

Days to harvest

πŸ“…

Sun

Full sun to partial shade

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Zones

4–11

USDA hardiness

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Difficulty

Easy

🌱

Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Direct Sow
Harvest
Direct Sow
Harvest

Showing dates for Cosmic Purple Carrot in USDA Zone 7

All Zone 7 root-vegetable β†’

Zone Map

Click a state to update dates

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Cosmic Purple Carrot Β· Zones 4–11

What grows well in Zone 7? β†’

Growing Details

Difficulty
Easy
Spacing2-3 inches
SoilDeep, loose, well-drained sandy loam free of rocks
pH6.0-6.8
Water1 inch per week, consistent moisture
SeasonCool season
FlavorSweet and crisp with mild spicy notes from the purple skin
ColorDeep purple exterior with bright orange core
Size7 inches long, 1 inch diameter

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 3β€”β€”May – JuneJuly – October
Zone 4β€”β€”April – JuneJuly – October
Zone 5β€”β€”April – MayJune – November
Zone 6β€”β€”April – MayJune – November
Zone 7β€”β€”March – MayJune – November
Zone 8β€”β€”March – AprilMay – December
Zone 9β€”β€”February – MarchApril – December
Zone 10β€”β€”January – MarchApril – December

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). Soil: Clay, High Organic Matter, Loam (Silt), Sand, Shallow Rocky. Soil pH: Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist, Occasionally Dry. Growth rate: Rapid. Maintenance: High. Propagation: Seed.

Harvesting

Small, dry, and ribbed with bristly hairs. The compound umbel of fruits folds inward to form a roundish shape that can be blown by the wind and roll across the ground dropping seeds.

Color: Brown/Copper. Type: Achene. Length: < 1 inch. Width: < 1 inch.

Bloom time: Fall, Summer

Edibility: Leaves, roots, flowers, and seeds are edible. The young fleshy roots can be cooked or eaten raw, the flower clusters can be french-fried to produce a carrot-flavored dish, the aromatic seed is used as a flavoring in stews, etc. The dried roasted roots are ground into a powder and are used for making coffee.

Storage & Preservation

Remove greens immediately after harvest, leaving Β½ inch of stem to prevent bleeding and moisture loss. Don't wash until ready to useβ€”excess moisture promotes rot. Store unwashed carrots in the refrigerator crisper drawer in perforated plastic bags for up to 3 months.

For longer preservation, blanch whole carrots in boiling water for 5 minutes, then freeze in airtight containers for up to 12 months. The purple skin may fade slightly but flavor remains excellent. These colorful roots also pickle beautifullyβ€”their striking rings create stunning pickled vegetables. Dehydrated Cosmic Purple carrot chips make nutritious snacks and retain much of their visual appeal when properly dried at 125Β°F until crisp.

History & Origin

Origin: Europe, Eastern Asia and northern Africa

Advantages

  • +Attracts: Bees, Butterflies, Pollinators
  • +Edible: Leaves, roots, flowers, and seeds are edible. The young fleshy roots can be cooked or eaten raw, the flower clusters can be french-fried to produce a carrot-flavored dish, the aromatic seed is used as a flavoring in stews, etc. The dried roasted roots are ground into a powder and are used for making coffee.
  • +Fast-growing

Considerations

  • -Toxic (Leaves, Sap/Juice): Low severity
  • -Causes contact dermatitis
  • -High maintenance

Companion Plants

Plant Together

+

Chives

Repels carrot fly and aphids while improving soil structure

+

Leeks

Natural pest deterrent against carrot fly and root maggots

+

Rosemary

Strong scent masks carrot odor from pests and repels carrot fly

+

Sage

Deters carrot fly and other root vegetable pests with aromatic oils

+

Lettuce

Shallow roots don't compete, provides living mulch and efficient space use

+

Radishes

Break up compacted soil for carrot root development and mature quickly

+

Marigolds

Repel nematodes and other soil-borne pests that damage carrot roots

+

Tomatoes

Provide shade for carrots in hot weather while carrots loosen soil for tomato roots

Keep Apart

-

Dill

Attracts carrot fly and can stunt carrot growth when planted too close

-

Parsnips

Compete for same nutrients and attract similar pests like carrot fly

-

Coriander

Can inhibit carrot seed germination and early growth through allelopathic compounds

Nutrition Facts

Calories
41kcal(2%)
Protein
0.93g(2%)
Fiber
2.8g(10%)
Carbs
9.58g(3%)
Fat
0.24g(0%)
Vitamin C
5.9mg(7%)
Vitamin A
835mcg(93%)
Vitamin K
13.2mcg(11%)
Iron
0.3mg(2%)
Calcium
33mg(3%)
Potassium
320mg(7%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #170393)

Pests & Disease Resistance

Resistance

Good resistance to alternaria leaf blight and cercospora leaf spot

Common Pests

Carrot fly, aphids, flea beetles, wireworms

Diseases

Alternaria leaf blight, bacterial soft rot, aster yellows

Frequently Asked Questions

How long does Cosmic Purple carrot take to grow?β–Ό
Cosmic Purple carrots take 70-80 days from seed to harvest. Plant seeds 2-3 weeks before your last frost date and expect to harvest in mid to late summer. Succession planting every 2-3 weeks extends your harvest window through fall.
Can you grow Cosmic Purple carrots in containers?β–Ό
Yes, but choose containers at least 12 inches deep to accommodate the 7-inch roots. Use 5-gallon containers or larger with excellent drainage holes. Fill with loose potting mix and avoid garden soil, which becomes too compacted in containers for proper root development.
What does Cosmic Purple carrot taste like?β–Ό
Cosmic Purple carrots are exceptionally sweet and crisp with mild spicy notes from the purple skin. The orange core tastes like traditional sweet carrots, while the purple exterior adds a subtle peppery complexity. They're excellent raw in salads or as snacks.
Do Cosmic Purple carrots lose their color when cooked?β–Ό
Yes, the purple color fades significantly when cooked, especially in boiling water. To preserve more color, try roasting, steaming briefly, or using in stir-fries with minimal cooking time. Raw preparations showcase the dramatic purple and orange rings best.
Is Cosmic Purple carrot good for beginners?β–Ό
Absolutely! This variety has excellent disease resistance and reliable germination, making it easier than many carrots. The main requirement is properly preparing loose, deep soil. Follow spacing and thinning guidelines, and you'll have success even as a first-time carrot grower.
When should I plant Cosmic Purple carrot seeds?β–Ό
Plant seeds 2-3 weeks before your last frost date when soil temperature reaches 45Β°F. For fall crops, plant 10-12 weeks before your first fall frost. In mild climates (zones 8-10), you can plant again in late summer for winter harvest.

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