ZonePlant
Kossak kohlrabi

vegetable variety in zone 4b

Kossak kohlrabi in zone 4b

Kossak · Brassica oleracea var. gongylodes

Zone
4b -25°F to -20°F
Growing season
130 days
Days to harvest
50 to 65

The verdict

Detailed guidance for this section is being prepared. Check back soon.

About Kossak

Sweet, juicy, surprisingly tender for its size; large storage kohlrabi (8-10 inch). Roasting, soup, storage. Holds quality unlike most large-bulb varieties which woody up.

Critical timing for zone 4b

Detailed guidance for this section is being prepared. Check back soon.

Common challenges in zone 4b

  • Spring frost timing
  • Apple scab pressure
  • Cane berry winter dieback

Modified care for zone 4b

Detailed guidance for this section is being prepared. Check back soon.

Kossak in adjacent zones

Other kohlrabi varieties for zone 4b

Frequently asked questions

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Will Kossak kohlrabi grow in zone 4b?

Yes. Kossak is recommended for USDA zones 3b through 7a, which includes zone 4b.

Image: "Brassica oleracea var. gongylodes Oktober 2011", by 4028mdk09, via Wikimedia Commons, licensed under CC-BY Source.

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