Gunma Green Cabbage

seeds
Brassica oleracea (capitata group)
(110 days) F-1 hybrid. Named for a prefecture on Honshu Island in Japan known for its cabbage production. Our choice for a superior flat-topped green cabbage ideal for cooks and gourmets, great for kraut and kimchi. Good moisture content makes sufficient brine so that you don’t need to add more to the kraut. Sweet tender wrapper leaves suitable for using raw for cabbage wraps and rolls.

Its large heads (avg. 5–7 lb but can get up to 11–13 lb) remain almost coreless. Although ready on Aug. 2 from a May 21 transplanting, they sat in the field for two months without splitting. Outer leaves can’t hold up once temperatures plummet to the 20s, so not for storage. Resists FY, TB. Tested negative for BR and BL.

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④ Multinational corporations not to our knowledge engaged in genetic engineering
ships year-round

3392 Gunma

A: 0.2g
$4.75
B: 0.4g
$6.80
C: 1g
$10.50
D: 4g
$31.00

Related Items

Potting Soil
Seed Starting Supplies
Quick Details
Hybrid Status
F-1 hybrid
Days to Maturity
110 days
Compare

Compare with other Green Cabbages

Variety Product Type Hybrid Status Days to Maturity
Golden Acre seeds open pollinated 62 days
Early Jersey Wakefield seeds open pollinated 63 days
Stonehead seeds F-1 hybrid 68 days
Murdoc seeds F-1 hybrid 40-60 days
Typhoon
Organic 		seeds F-1 hybrid 100 days
Tribute seeds F-1 hybrid 103 days
Gunma seeds F-1 hybrid 110 days
January King Cabbage
Organic 		seeds open pollinated 180 days
Shipping

From early May through October 31, items shipping from our garden seeds warehouse ship twice a week, usually Tuesday and Thursday. For quickest turnaround time order online by noon Monday or Wednesday.

Additional Information

Cabbage

  • About 150–350 seeds/g.
  • Days to maturity are from transplant date.

Blue-purple foods such as red cabbage and purple cauliflower contain anthocyanins and phenolics, which benefit the urinary tract, memory and immune system.

Culture: Exposure to hoarfrost is good for cabbages. They double their sugar content after one month of cold. Wire hoops and row cover should be used at early stages to keep out flea beetles and swede midge.

Red cabbage seedlings are often used for microgreens.

Minimum germination soil temperature 40°, optimal range 55–95°.

Brassicas

Days to maturity are from transplant date.

Culture: Start brassicas indoors March-May for setting out May-July, or direct-seed in May, or in June for fall crop. Minimum germination soil temperature 40°, optimal range 55–85°. Easier grown for the fall because many varieties perform poorly in hot summers. For better stands in dry conditions, sow in trenches and keep irrigated. Wire hoops and row cover should be used at early stages to keep out flea beetles and swede midge.

Note: because of a rule issued by Oregon, we cannot ship brassica packets larger than ½ oz. (14 grams) into the Willamette Valley, except those that have tested negative for Black Leg and Black Rot. Check descriptions for information.

Diseases:

  • BL: Blackleg
  • BR: Black Rot
  • BS: Bacterial Speck
  • DM: Downy Mildew
  • FW: Fusarium Wilt
  • FY: Fusarium Yellows
  • TB: Tipburn
  • WR: White Rust

Pest and Disease Remedies for all Brassicas

Major pests: Cabbage Looper, Diamondback Moth, Imported Cabbageworm
Cultural controls: control cabbage-family weeds near crop fields, till under crop debris of early-season brassicas after harvest.
Material controls: Spinosad, Bt.

Pest: Flea Beetle
Cultural controls: floating row covers, mulch with straw, time plantings for fall harvested crops only, crop rotation, perimeter trap cropping.
Material controls: AzaMax, Spinosad, PyGanic.

Pest: Cabbage Root Maggot
Cultural controls: time planting to avoid first hatching, use row covers, control weeds.

Major diseases: Black Rot, Alternaria Leaf Spot, Blackleg, Club Root, Downy Mildew, White Mold
Cultural controls: avoid transplanting plants with yellow leaves or v-shaped lesions, crop rotation, destroy crop debris after harvest, avoid overhead irrigation, control weeds, allow for good air movement.
Material controls: Copper.

Disease: Head Rot
Cultural controls: use well-domed varieties, harvest heads when tight, cut stalks at an angle.
Material control: Copper.

Swede Midge—not as cute as it sounds!

Alert! Heading brassicas in the Northeast are seeing consistent damage from swede midge, a tiny gall midge. Its effects result in a non-heading plant. Wire hoops and row cover at early stages of heading brassica crops are becoming crucial for success. Some research also suggests garlic sprays as a possible organic repellent. Consult your Cooperative Extension resources for further information.

Germination Testing

For the latest results of our germination tests, please see the germination page.

Our Seeds are Non-GMO

Non GMO

All of our seeds are non-GMO, and free of neonicotinoids and fungicides. Fedco is one of the original companies to sign the Safe Seed Pledge.