Skip to content
  • Limited time specials are coming, let you save more on Black Friday! 🔥Promo Code: Save up $5.00, Code:WP4EO5
  • Limited time specials are coming, let you save more on Black Friday! 🔥Promo Code: Save up $5.00, Code:WP4EO5
Garden Plant ShopGarden Plant Shop
  • Menu
  • Vegetables
    • Peppers
    • Greens
    • Pumpkins
    • Squash
    • Tomatoes
    • Lettuce
    • Microgreens
    • Onions
    • Corn
    • Beans
    • Carrots
    • Radishes
    • Cucumbers
    • Cabbage
    • Broccoli
  • Flowers
    • Sunflowers
    • Tulips
    • Celosia
    • Cosmos
    • Aster
    • Flower Collections and Mixes
    • Lisianthus
    • Dianthus (Sweet William)
    • Viola (Pansy)
  • Tools & Supplies
    • Cut-Flower Supplies
    • Harvesting Tools
    • Seed Starting Supplies
    • Weed Control
    • Mulches and Weed Barrier
    • Seeders
    • Bed Preparation Tools
    • Greenhouse and Tunnel Supplies
    • Pest and Disease Controls
    • Trellising & Crop Supports
    • Row Covers and Accessories
    • Watering and Irrigation
    • Raised Beds & Planters
    • Transplanters
    • Fertilizers & Amendments
  • Fruit Trees
    • Fruit Trees
    • Berry Bushes
    • Tropical Fruits
  • Shrubs & Hedges
    • Evergreen & Privacy
    • Flowering Shrubs
    • Privacy Shrubs
    • Evergreen Shrubs
  • Featured Products
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

 

Kossak

Home / Vegetables / Kohlrabi
  • Quickstar -Garden Plant Shop 03048 01 quickstarhorz
  • Terek -Garden Plant Shop 03302 01 terek
New
Kossak

$13.00 Original price was: $13.00.$9.10Current price is: $9.10.

Clear
SKU: AM9OB 1700021018 Categories: Kohlrabi, Vegetables Tags: Johnny's Selected Seeds, Kohlrabi
  • Elevate Your Shopping Experience
  • Quality You Can Trust
  • 100% Quality Promise
  • Green products, guaranteed.
Browse
  • Flowers
    • Aster
    • Celosia
    • Cosmos
    • Dianthus (Sweet William)
    • Flower Collections and Mixes
    • Lisianthus
    • Sunflowers
    • Tulips
    • Viola (Pansy)
  • Fruit Trees
    • Berry Bushes
    • Fruit Trees
    • Tropical Fruits
  • Shrubs & Hedges
    • Evergreen & Privacy
    • Evergreen Shrubs
    • Flowering Shrubs
    • Privacy Shrubs
  • Tools & Supplies
    • Bed Preparation Tools
    • Compost Bins & Accessories
    • Cut-Flower Supplies
    • Fertilizers & Amendments
    • Greenhouse and Tunnel Supplies
    • Harvesting Tools
    • Mulches and Weed Barrier
    • Pest and Disease Controls
    • Raised Beds & Planters
    • Row Covers and Accessories
    • Seed Starting Supplies
    • Seeders
    • Transplanters
    • Trellising & Crop Supports
    • Watering and Irrigation
    • Weed Control
  • Vegetables
    • Beans
    • Beets
    • Broccoli
    • Cabbage
    • Carrots
    • Cauliflower
    • Chicory
    • Corn
    • Cucumbers
    • Eggplant
    • Greens
    • Kohlrabi
    • Lettuce
    • Melons
    • Microgreens
    • Onions
    • Peas
    • Peppers
    • Potatoes
    • Pumpkins
    • Radishes
    • Spinach
    • Squash
    • Tomatoes
    • Watermelons
  • Description
  • Additional information
  • Reviews (0)

Giant kohlrabi for storage.

Harvest when round and about 8″ diameter, before it begins to elongate. At this size, the roots will store well and the flesh will be sweet, tender, and delicious. Kossak will keep in cold storage for up to 4 months. USDA Certified Organic.

Specs:

  • Packet: 100 seeds
  • Avg. 6,000 seeds/oz

Size

Packet, 250 Seeds, 1,000 Seeds, 5,000 Seeds, 25,000 Seeds

SCIENTIFIC NAME

Brassica oleracea var. gongylodes

CULTURE

Kohlrabi prefers mild or cool weather. It is grown throughout the season in the North, and during fall and winter in the South. Sow 15 seeds/ft., 1/4- 1/2" deep, in rows 12-18" apart. Thin fresh-market varieties to 4" between plants. Thin storage varieties to 10" between plants. For earliest crops start in flats or plug trays and transplant. Fertile, well-irrigated soil promotes rapid growth, which makes for a sweeter flavored crop. Harvest when roots are about 2-3" diameter; 8" diameter for storage varieties.

DISEASES

Adhere strictly to a preventive program including: (1) long crop rotations with non-brassica crops, (2) clean starting mixes and outdoor seedbeds, and (3) strict sanitation practices. Johnny's Selected Seeds only sells seed lots of kohlrabi that have tested negative for black rot (Xanthomonas campestris pv. campestris) and black leg (Phoma lingam).

DAYS TO MATURITY

From direct seeding; for days to maturity from transplanting, subtract about 14 days.

AVG. DIRECT SEEDING RATE

250 seeds/16', 1,000 seeds/66', 436M/acre at 15 seeds/ft with rows 18" apart.

TRANSPLANTS

Avg. 4,500 plants/oz., 800 plants/1,000 seeds.

SIZED SEEDS

Standard except where noted.

SEED SPECS

SEEDS/OZ.: Avg. 6,200.

PACKET

100 seeds, sows 8'.

Reviews

There are no reviews yet.

Be the first to review “Kossak” Cancel reply

Related products

New
Helios
Quick View

Peppers

Helios

$12.00 Original price was: $12.00.$8.40Current price is: $8.40.
New
Flagrano
Quick View

Beans

Flagrano

$12.00 Original price was: $12.00.$8.40Current price is: $8.40.
New
Fordhook Giant
Quick View

Vegetables

Fordhook Giant

$14.00 Original price was: $14.00.$9.80Current price is: $9.80.
New
Round Of Hungary
Quick View

Vegetables

Round Of Hungary

$27.25 Original price was: $27.25.$19.08Current price is: $19.08.
New
Spring Raab
Quick View

Broccoli

Spring Raab

$16.80 Original price was: $16.80.$11.76Current price is: $11.76.
New
Geronimo
Quick View

Vegetables

Geronimo

$13.25 Original price was: $13.25.$9.28Current price is: $9.28.
New
Sweet Stem
Quick View

Broccoli

Sweet Stem

$14.00 Original price was: $14.00.$9.80Current price is: $9.80.
New
Barolo
Quick View

Onions

Barolo

$13.00 Original price was: $13.00.$9.10Current price is: $9.10.
OUR SHOP
  • My account
  • Checkout
  • Cart
  • Payment Method
CONTACT
  • About Us
  • Contact Us
  • FAQ
  • Returns & Exchanges
CUSTOMER SERVICES
  • Privacy Policy
  • Shipping Policy
  • Delivery
  • Term and Conditions
STAY IN TOUCH

Sign up for exclusive offers, original stories, events and more.

    Copyright 2025 © www.gardenplantsale.com
    • Vegetables
      • Peppers
      • Greens
      • Pumpkins
      • Squash
      • Tomatoes
      • Lettuce
      • Microgreens
      • Onions
      • Corn
      • Beans
      • Carrots
      • Radishes
      • Cucumbers
      • Cabbage
      • Broccoli
    • Flowers
      • Sunflowers
      • Tulips
      • Celosia
      • Cosmos
      • Aster
      • Flower Collections and Mixes
      • Lisianthus
      • Dianthus (Sweet William)
      • Viola (Pansy)
    • Tools & Supplies
      • Cut-Flower Supplies
      • Harvesting Tools
      • Seed Starting Supplies
      • Weed Control
      • Mulches and Weed Barrier
      • Seeders
      • Bed Preparation Tools
      • Greenhouse and Tunnel Supplies
      • Pest and Disease Controls
      • Trellising & Crop Supports
      • Row Covers and Accessories
      • Watering and Irrigation
      • Raised Beds & Planters
      • Transplanters
      • Fertilizers & Amendments
    • Fruit Trees
      • Fruit Trees
      • Berry Bushes
      • Tropical Fruits
    • Shrubs & Hedges
      • Evergreen & Privacy
      • Flowering Shrubs
      • Privacy Shrubs
      • Evergreen Shrubs
    • Featured Products
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.