Root vegetables
70-80days to harvest
14-21days to germinate
Z4–11USDA zones
Easy to Moderatedifficulty
HeirloomContainer friendly

Sowing

Direct sow seeds 2-3 weeks before last frost. Sow 1/4 inch deep and thin seedlings when 2 inches tall.

Cultivation

Sun
Full sun to partial shade (4-6+ hours)
Water
1 inch per week, consistent moisture
Soil
Deep, loose, sandy loam free of stones
Soil pH
6.0-6.8
Spacing
2-3 inches apart, rows 12-18 inches apart
Season
Cool season

Appearance & flavour

Colour
Deep purple exterior with bright orange core
Size
7-9 inches long, 1-1.5 inches diameter
Shape
Tapered cylindrical, classic carrot shape
Flavour
Sweet and crisp with classic carrot flavor, slightly spicier than orange varieties

In the kitchen

Fresh eating, roasting, juicing, colorful salads, pickles. Loses some color when cooked.

Pests, disease & resistance

Pests
Carrot rust fly, wireworms, cutworms
Diseases
Alternaria leaf blight, bacterial soft rot, cavity spot
Resistance
Good general disease resistance, moderate carrot fly resistance

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1——June – JulyAugust – September
2——May – JulyAugust – September
3——May – JuneJuly – October
4——April – JuneJuly – October
5——April – MayJune – November
6——April – MayJune – November
7——March – MayJune – November
8——March – AprilMay – December
9——February – MarchApril – December
10——January – MarchApril – December
11——January – FebruaryMarch – December
12——January – FebruaryMarch – December
13——January – FebruaryMarch – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

ChivesRepels carrot fly and aphids while improving soil health
RosemaryStrong scent deters carrot fly and other root-damaging pests
SageRepels carrot fly and cabbage moths through aromatic compounds
LeeksNatural pest deterrent that doesn't compete for root space
LettuceShallow roots don't compete, provides living mulch to retain soil moisture
RadishesBreak up compacted soil for carrot growth and mature quickly
TomatoesDeep taproot improves soil structure while different root zones reduce competition
MarigoldsRelease compounds that repel nematodes and other soil-borne pests

Avoid

DillCan stunt carrot growth and attract carrot flies when mature
ParsnipsCompete for same soil nutrients and space, both are root vegetables
FennelInhibits growth of most garden plants through allelopathic compounds

Nutrition (per 100 g)

Calories (per 100 g)
41
Protein (g)
0.93
Fat (g)
0.24
Carbohydrate (g)
9.58
Fibre (g)
2.8
Sugars (g)
4.74
Vitamin A (µg)
835
Vitamin C (mg)
5.9
Vitamin E (mg)
0.66
Vitamin K (µg)
13.2
Vitamin B6 (mg)
0.138
Folate (µg)
19
Calcium (mg)
33
Iron (mg)
0.3
Magnesium (mg)
12
Phosphorus (mg)
35
Potassium (mg)
320
Zinc (mg)
0.24
Selenium (µg)
0.1

Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the root vegetables growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

Grown Purple Carrot Cosmic Purple?

Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.

Similar varieties

Other root vegetables with a comparable time to harvest, so a season that suits Purple Carrot Cosmic Purple suits these too.

Browse all 56 root vegetables