Kohlrabi

Delicacy White Kohlrabi

Delicacy White Kohlrabi

KH351

65 days. Light, minty green skin. In our winter trials, when most other kohlrabi had split open and succumbed to the weather, this powerhouse duo kept looking and tasting wonderful. Both Delicacy White and Purple can be harvested when the bulbs reach tennis ball size, but when left to grow slightly larger, they still remain tender. Crisp, delectable flesh is great on a veggie platter, or grated and incorporated into your favorite slaw.

Winter Growing Information

   Open Pollinated
Approximately 150 seeds per 1/2 gram.
  • KH351/S
  • 1/2 gram
  • $2.55

  • KH351/P
  • 4 grams
  • $5.05

  • KH351/B
  • 1/2 oz
  • $10.95

  • KH351C1
  • 1 oz
  • $15.35

  • KH351C2
  • 1/4 lb
  • $32.65

  • KH351C3
  • 1 lb
  • $78.55
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Soil Temp for Germ.Days to EmergenceSeed DepthThin Plants ToSeed SpacingRow SpacingMin. Germ.Seed LifeSeeds per 1/2 gramFertilizer Needs
55-75°F5-171/4"3-8"1"12-18"80%3 years≈ 150Low


Brassica oleracea, Gongylodes Group: Once a common vegetable, this curious brassica family crop had fallen into unfortunate obscurity, only recently being rediscovered by many present-day gardeners. Its crisp, mildly sweet bulb has a hint of apple, can be enjoyed raw or cooked, and provides lots of fiber, vitamins C and B6 along with copper, potassium, and manganese.

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

Culture
• Kohlrabi performs best in the cool season and can tolerate a wide range of soil types
• For extended harvests, plant every 2-3 weeks
• Mature plants are frost tolerant and cool weather brings out sweet flavor

Direct Sowing
• May and June sowings should be avoided as they result in kohlrabi maturing in the hottest weather, producing dry, woody bulbs
• Sowings can resume from late July to early August for fall/winter harvest
• Thin when plants have 2 sets of true leaves

Transplanting
• Start seeds 4-6 weeks before anticipated transplant date
• Transplant outside when there are 6-8 true leaves and nighttime temperatures remain above 40°F

Insects & Diseases
Common insects: See Brassica Insect Information below
Disease prevention: 5-7 year crop rotation

Harvest & Storage
• For spring-sown kohlrabi: harvest when less than 2-4 inches in diameter
• Fall-grown kohlrabi is less likely to get woody as it gets larger
• Store at 36°F and 95% relative humidity

Brassica Insect Information
Aphids: Control aphids with ladybugs, or a hard spray of water, Azatrol, 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 Grow Guard 20 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.