Vegetable / Cool season

Early White Vienna Kohlrabi

Fast spring and fall brassica beds where compact spacing matters.

Crisp swollen stems with mild cabbage-turnip flavor.

Seed spacing and maturity

Days to maturity
55
Germination temperature
45-85F
Seed depth
0.25 inches
Spacing
6 inches
Row spacing
18 inches
Start method
Either

Frost-date timing

Indoor start
4 weeks before last frost
Direct sow
28 days before last frost
Transplant
14 days before last frost
Fall planting
10 weeks before first frost
Succession interval
repeat every 14 days

Action plan

Can I plant this now?
Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
Start indoors or direct sow?
Direct sow or transplant depending on your soil warmth, bed readiness, and frost-risk plan.
How much space?
6 inches in-row spacing, 18 inches between rows, and 0.25 inch seed depth.
Best companions?
Use crop-family rotation first, then pair with compatible timing, spacing, and canopy size rather than relying on a simple companion chart.
Common failure modes?
Harvest young; oversized bulbs become tough in heat or drought. Even moisture keeps bulbs tender and prevents woody texture. Fertile, well-drained soil with steady nitrogen.

Growing profile

Sun
Full sun
Water
Even moisture keeps bulbs tender and prevents woody texture.
Soil
Fertile, well-drained soil with steady nitrogen.
Watch
Harvest young; oversized bulbs become tough in heat or drought.
  • brassica
  • quick-crop
  • cool-season
  • containers

Browse context

Related varieties

Source: Penn State cole crops for home vegetable gardens