General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Biennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Plant Height: 2 feet
Uses: Salad greens
Cooked greens
Dynamic Accumulator: P (Phosphorus)
Ca (Calcium)
S (Sulfur)
Mn (Manganese)
Zn (Zinc)
Cu (Copper)
Propagation: Seeds: Self fertile
Days to germinate: 5-17
Depth to plant seed: 1/4"
Can handle transplanting
Other info: Transplant when plants have 6-8 true leaves, and nighttime temps are above 30°
Pollinators: Self
Bees

Image
Common names
  • Kale
  • Collard
  • Cole
Botanical names
  • Accepted: Brassica oleracea var. viridis
  • Synonym: Brassica oleracea var. acephala

Photo Gallery
Location: San Antonio Botanical Garden, San Antonio, Texas
Date: 2022-04-04
Location: San Antonio Botanical Garden, San Antonio, Texas
Date: 2022-04-04
Location: Bolstridge Farm, Fitzgerald, Georgia
Date: December 2014
Planted in September 2014, these hardy Winterbor Kale produced sw
Comments:
  • Posted by sundina (Metro Detroit - Zone 6a) on Mar 8, 2014 9:04 PM concerning plant:
    Winterbor Kale is one of the most cold hardy of the kales. It has finely curled, thick, blue-green leaves. Frost will make it sweeter tasting, and high temperatures can make the leaves a bit bitter. Outer leaves are best picked when they are 8-10 inches long.

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