Brassicas
55-65days to harvest
5-10days to germinate
Z6–9USDA zones
Easydifficulty
HeirloomContainer friendly

Sowing

Direct sow 2-4 weeks before last spring frost, or start indoors 4-6 weeks early. Succession plant every 2-3 weeks for continuous harvest.

Cultivation

Sun
Full sun to partial shade (4-6+ hours)
Water
1 inch per week, consistent moisture prevents woody texture
Soil
Well-drained, fertile soil with good organic matter
Soil pH
6.0-7.5
Spacing
6-8 inches
Height
10-24 inches
Season
Cool season

Appearance & flavour

Colour
Pale green to white
Size
2-4 inches diameter when harvested
Shape
Round, bulbous swollen stem above ground
Flavour
Sweet, crisp, and mild with apple-turnip flavor

In the kitchen

Raw in salads, coleslaw, roasting, grilling, steaming, pickling, stuffing

Pests, disease & resistance

Pests
Cabbage worms, flea beetles, aphids, root maggots
Diseases
Clubroot, black rot, downy mildew, powdery mildew
Resistance
Good general disease tolerance, resistant to clubroot

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1April – MayJune – JulyJune – JulyAugust – September
2April – MayJune – JulyMay – JulyJuly – September
3March – AprilMay – JuneMay – JuneJuly – October
4March – AprilMay – JuneApril – JuneJune – October
5February – MarchApril – MayApril – MayJune – November
6February – MarchApril – MayApril – MayJune – November
7February – MarchApril – MayMarch – MayMay – November
8January – FebruaryMarch – AprilMarch – AprilMay – December
9JanuaryFebruary – MarchFebruary – MarchApril – December
10JanuaryFebruary – MarchJanuary – MarchMarch – December
11JanuaryJanuary – FebruaryJanuary – FebruaryFebruary – December
12JanuaryJanuary – FebruaryJanuary – FebruaryFebruary – December
13JanuaryJanuary – FebruaryJanuary – FebruaryFebruary – December

Companion planting

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

OnionsRepel cabbage worms, aphids, and flea beetles that commonly attack brassicas
LettuceShallow roots don't compete, can be harvested before kohlrabi matures, provides living mulch
RadishesBreak up soil for kohlrabi's shallow roots, mature quickly, may trap flea beetles
SpinachCool season companion with similar growing requirements, doesn't compete for space
DillAttracts beneficial insects like parasitic wasps that control cabbage worms and aphids
NasturtiumsAct as trap crop for aphids and flea beetles, edible flowers add garden diversity
CarrotsDeep taproot doesn't compete with shallow kohlrabi roots, helps break up soil
ChivesRepel aphids and cabbage worms, improve flavor of nearby brassicas

Avoid

TomatoesCompete for nutrients and may stunt kohlrabi growth, different watering needs
Pole BeansMay inhibit kohlrabi growth through nitrogen competition and shading
StrawberriesBoth are heavy feeders that compete for nutrients, different soil pH preferences

Nutrition (per 100 g)

Calories (per 100 g)
27
Protein (g)
1.7
Fat (g)
0.1
Carbohydrate (g)
6.2
Fibre (g)
3.6
Sugars (g)
2.6
Vitamin A (µg)
2
Vitamin C (mg)
62
Vitamin E (mg)
0.48
Vitamin K (µg)
0.1
Vitamin B6 (mg)
0.15
Folate (µg)
16
Calcium (mg)
24
Iron (mg)
0.4
Magnesium (mg)
19
Phosphorus (mg)
46
Potassium (mg)
350
Zinc (mg)
0.03
Selenium (µg)
0.7

Where to buy seed and equipment

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Growing it? There is a full cultivation guide at the brassicas 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 Kohlrabi 'Early White Vienna'?

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

Similar varieties

Other brassicas with a comparable time to harvest, so a season that suits Kohlrabi 'Early White Vienna' suits these too.

Browse all 79 brassicas