Winterbor Kale

Winterbor Kale


60 days. One of the most winter hardy kales, Winterbor has finely curled, thick, blue-green leaves. Very vigorous, it can grow up to 2 feet, developing an abundance of ruffled leaves. A magnificent early spring and late fall kale, and great for market growers, too.

   Hybrid Variety
Approximately 300 seeds per gram.
  • KL358/S
  • 1/2 gram
  • $4.05

  • KL358/P
  • 250 seeds
  • $6.85

  • KL358/B
  • 500 seeds
  • $11.25

  • KL358C1
  • 1M seeds
  • $15.50

  • KL358C2
  • 5M
  • $62.85
  • More Information
  • Customer Reviews (4)
Soil Temp for Germ.Days to EmergenceSeed DepthThin Plants ToSeed SpacingRow SpacingMin. Germ.Seed LifeSeeds per gramFertilizer Needs
55-75°F5-171/4"12-24"4-6"18-36"75%3 years≈ 300Medium

Brassica oleracea, Acephala Group: Fast becoming known as the "Queen of Greens", kale is one of the healthiest vegetables on earth. Kale is a true super food rich in carontenoids and flavonids, which are two powerful antioxidants that protect our cells from free radicals and are reported to specifically fight against the formation of cancerous cells. One cup of kale has just 36 calories, zero grams of fat, a whopping 684% of RDA of K, 206% of A, and 134% of C vitamins.

Days to maturity are calculated from date of direct seeding; subtract 15 days if transplanting.

• Kale is a cool-season crop that performs best in spring and fall
• In wet climates, ensure adequate plant spacing to reduce pest and disease issues

Direct Sowing
• Cover seed with loose soil, vermiculite, or sifted compost and water evenly
• Sow June—July for a fall crop

• Start indoors 4-6 weeks before anticipated transplant date
• Work in 1/2 cup of TSC's Complete fertilizer around each plant
• Start May—July for transplanting June—August for a fall crop

Insects & Diseases
Common insects: See Brassica Insect Information below
Common diseases: Leaf spot, black rot, fungal diseases, mold, mildew, club root
Disease prevention: Dispose of diseased material, proper crop rotation of 3-4 years, apply Greencure® for mildews

Harvest & Storage
• Harvest leaves from the bottom up at any size
• Cool weather and frost brings out best flavor
• Store at 36°F and 95% relative humidity

Brassica Insect Information
Aphids: Control aphids with ladybugs or a hard spray of water, Neem oil or Pyrethrin. Also, select varieties that mature later in the season when aphid populations decline.
Cabbage worms, loopers, and root maggots: The first sign of cabbage worms will be off-white butterflies fluttering near the plants. They lay their yellowish-colored eggs on the undersides of leaves, which hatch into caterpillars that can cause severe root and head damage. To control light infestations, spray plants with Bacillus thuringiensis (B.t.). For heavy infestations, bait cabbage worms by mixing wheat bran into a B.t. solution. Add 1 tablespoon of molasses. Broadcast the bran mixture around the base of plants. Reapply as necessary. Using Reemay or Summer Insect Barrier can also provide control.
Flea beetles: Flea beetles chew tiny pinholes in leaves. Early control is essential to minimize the damage. Spray infected plants with Pyrethrin. Using floating row covers such as Summer Insect Barrier can also provide control.
Symphylans: In some areas of the US, symphylans (also known as garden centipede) can severely impede the plant growth of many crops. Only 1/4 inch long, white, and very active, they eat the root hairs of developing plants. Using larger transplants helps reduce damage. Contact your local county extension agent if you suspect you have a problem.
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Mar 27, 2017  |  By Stephan
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The pictures don't do it justice. It's a very good looking kale, and it's also tasty and hardy. Works well for kale chips.
best kale ever
Jun 24, 2016  |  By Jane
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I love kale and grow many varieties; Winterbor has always been in my garden over the years and recently became hard to find as other hybrids were becoming more popular. However, this year this Winterbor outperformed the Vates and produced a crop of the best tasting and sweetest kale I have ever grown. Thank you Territorial Seed for carrying this variety.
my favorite kale
Jan 6, 2016  |  By Lisa
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I eat a lot of kale, and this on is my favorite. It is easy to grow, has a great harvest and yield, and really good flavor. I put it in water, like a fresh cut flower, if I am not going to prep it right away, or I cut out the mid rib and cut into ribbons and store in the refrigerator for a quick to make salad or smoothie.
Nice flavor, cold hardy
Jan 6, 2014  |  By Doug
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Did well in our garden, even in the cold early winter.