Copenhagen Market Cabbage Seeds (Brassica oleracea)

Packet of 300 Seeds


Single Packet of 300 Seeds

The Copenhagen Market Cabbage is a Brassica oleracea. It produces an abundance of green cabbage with heads that average 6 to 8 inches in diameter, usually weighing 4 to 5 lbs. It was a brought to the United States by H. Hartman & Company of Copenhagen, Denmark in 1909, according to the department of Agriculture. The Copenhagen Market variety is very flavorful and tender. Unlike other varieties, it possesses a subtly sweet flavor that pairs well with meats. A popular choice for any meal it does well raw and slow cooked. Slow cooking produces a soft and tender texture that does well in any soup. While raw cabbage is excellent in coleslaws and sauerkraut. Storage is also convenient as the heads rarely burst and keep for two weeks or more. When going bad, the usual signs are a paling of the leaves before browning.

When growing this plant in the garden there are a few pests and diseases common. One example of these is Boron inadequacy. Boron results from a lack of soil nutrient balance, the most common symptom being internal cracking of the Cabbage roots. This is an essential soil component for proper cabbage growth and will not be available after soils reach a certain PH. Wirestem is another symptom that is more prevalent for plants located indoors, but  also within the field too. Wherever the location, it seems to thrive when soil is wet and there is poor air circulation. Seeds will either rot before they germinate, the cabbages will rot from too much moisture.

Sowing The Seed

Cabbage is a cool seasoned crop, which is well suited for the early Spring and early to late Autumn season. The seeds can be started indoors, or directly outdoors. If started indoors, sow in peat pots, 6 to 8 weeks prior to the last frost, at a depth of 1/4” under topsoil. Transplant into the garden, or direct sow outdoors, when the weather is slightly cool to warm. Check below for spacing and growth habits.

Growing Conditions

Cabbage plants, as explained above, will thrive in cooler temperatures. It is recommended to place them in an area of full sunlight, with temperatures averaging around 60F to 65F. The plants will need a soil that is rich in organic matter, but also well drained. If your sowing area is filled with hard, compact soil, we recommend adding in a light compost mix to improve drainage. Water the plants daily to ensure that the soil is kept moist until germination has occurred.

Germination & Growth

Cabbage seeds will typically take anywhere between 7 to 14 days to sprout open. The plants themselves will take up little garden space, and can be grown in rows. Each plant can be spaced about 18 to 24 inches apart from one another, in rows that are spaced about 24 to 30 inches apart. Fertilize when new leaves form, and when the heads begin to form. Harvest your Cabbage heads in roughly 70 to 100 days.

Harvesting Black Cherry Tomatoes

Black Cherry Tomatoes are ready for harvesting in about 65 days, after the fruits will turn from green to dark burgundy-red. Simply pick the fruits from their vines. Rinse and store them in the fridge, or eat them fresh.

Common Questions

Question: Are your seeds GMO?
Answer: Absolutely not! At Seed Needs, we have a strong stance against GMO based seed products. We promise to NEVER knowingly carry, or ship GMO based seed products.

Question: Are your seeds orgnic? Or do you offer organic seeds?
Answer: At this time we do not offer certified organic seed varieties. Although some of the seeds in our shop may be from organic suppliers, we do not have the rights label them as such.

Question: Are your seeds Heirloom?
Answer: Yes, we carry a diverse selection of heirloom seeds that are sourced from professional growers that are located all over the globe. A small selection of varieties are Hybrids, and are labeled as such on the product listings.

Question: Are you located within the United States?
Answer: Yes, we store and ship all of our seeds from New Baltimore, Michigan.

Question: Do you ship out of the USA?
Answer: At this time we only ship within the United States and to Canada.


You may be interested in our article "What are Hybrids, GMO's & Heirlooms?"

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