Vegetable · Brassica-stem

Winner Kohlrabi

Brassicaceae

Winner is the most widely recommended kohlrabi for home gardens — 45-50 DTM, slow to get pithy (woody), and reliable across zones 5-9. Harvest at 2-3 inches diameter for best texture. EASIEST and FASTEST brassica. Above-ground swollen stem (not a root). 45-60 DTM. Direct sow OK. Succession-plantable every 2-3 weeks. Tolerates wider temperature range than other brassicas. THE beginner gateway brassica. CRITICAL: harvest at 2-3 inch diameter — larger bulbs become woody and bitter (especially spring harvests in heat). Fall-harvested can grow slightly larger. Quickstar (40d, purple), Grand Duke (50d), White/Purple Vienna (60d, heirloom).

At a Glance

Days to Maturity

45–50 days

Sun

6+ hours

Spacing

6 "

Container

Yes

1+ gallon pot

Zone Planting Guide

Your USDA Zone:

Growing Guide

Germination

Germination Time 5–10 days

Optimal Temp 75°F

Seed Depth 0.25"

Watering

Weekly Water 1–1.5 "

Needs Moderate

Soil

pH Range 6–7

Resilience

Heat: Low Cold: Medium

Nutrition

Feeding Intensity Moderate feeder

Harvest

Bulb 2-3 inches diameter, firm. DO NOT let grow larger — becomes woody and bitter.

Sources

university UMN Extension — Growing Kohlrabi university USU Extension — Kohlrabi university Iowa State University Extension — Growing Kohlrabi in the Home Garden

More Vegetables

Winner Kohlrabi Planting Dates by Zone

Planting dates for Winner Kohlrabi vary by USDA hardiness zone. Select your zone below for frost dates, start-indoors timing, and a full monthly planting calendar.

Zone 5A Zone 5B Zone 6A Zone 6B Zone 7A Zone 7B Zone 8A Zone 8B Zone 9A Zone 9B

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