Organic cabbage seed collection, 6 or 12 varieties
ZenGreens organic brassica seed collection bringing together 6 or 12 different varieties, one variety per packet. Headed cabbages, cauliflowers, broccoli, kohlrabi and leaf cabbages, for autumn and winter harvests.
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The summary
- What you receive: a gift box of organic brassica seed packets, one variety per packet.
- The varieties: kohlrabi Wiener Violetter, broccoli Ramoso Calabrese, cauliflower Snow Ball X, white cabbage, and red cabbage.
- When to sow: March to June, in a nursery bed.
- Sowing depth and germination: 1 to 2 cm, then 5 to 10 days at 15 to 20 °C.
- What comes next: transplanting at the four-leaf stage, spaced planting under fleece or netting.
- How it arrives: in a gift box, either alone or with the rest of your order.
Heritage cabbage collections, from kohlrabi to broccoli, sow from March to June.
The word "cabbage" covers a whole family of vegetables that have almost nothing in common on the plate. Here you will find Wiener Violetter kohlrabi, Ramoso Calabrese broccoli, Snow Ball X cauliflower, a white cabbage, a red cabbage and Brussels sprouts.
🥦 Six vegetables, a single species
All these brassicas derive from the same wild plant, Brassica oleracea, and selective breeding has simply emphasised a different part in each. Kohlrabi forms a tender bulb above the ground and is ready to harvest in 8 weeks, making it the quickest member of the family. Broccoli and cauliflower are harvested at the head before the flowers open, and require more careful management since a bolted head is a lost one. Headed cabbages, white or red, tighten their leaves into a dense ball and are cut in a single stroke in autumn. Brussels sprouts, meanwhile, occupy the ground for nearly a full year before producing their first sprouts after the first frosts.
Without netting, the cabbage white will strip the bed
Two pests are enough to devastate a brassica crop within days. The large white butterfly lays eggs on the underside of leaves and its caterpillars strip everything down to the veins; the flea beetle peppers young plants with hundreds of tiny holes. A fine-mesh insect net fitted at planting time deals with both at once, and it is worth more than any treatment applied after the damage appears. Plan for it before you sow, not once the harm is already visible.
Raising seedlings in trays frees up the board
A winter cabbage occupies its space in the garden for 6 months, yet its first six weeks require only a tray. By sowing in a 24-cell tray, you keep the bed free for a lettuce or radish in the meantime, and then plant out already-formed root plugs that establish without any setback.
Transplanting itself calls for a precise technique. Take the seedling at the 4 true-leaf stage and plant it deeper than it was in its pot, burying the stem right up to the first leaves: the buried portion will then produce roots along the stem, giving the plant far greater resistance to wind, which matters considerably for a Brussels sprout that will reach 80 cm. A thorough watering on planting day, followed by a mulch, completes the job.
📅 Sow in spring, eat in winter
The brassica calendar often surprises beginners, as most sowing takes place in spring for an autumn and winter harvest. Winter cabbages are sown from March to May, transplanted 5 weeks later, and harvested from October to February, cold weather even improves the flavour of Brussels sprouts and kale. Kohlrabi and broccoli, being considerably quicker, are sown from March to July and cut 2 to 3 months later. Sow under 1 cm of soil and expect germination in 5 to 8 days in a grow medium at 18 °C.
📏 Spacing makes the head
Kohlrabi
25 cm between plants; harvest when the head reaches 7 cm, beyond that the flesh becomes fibrous.
Brocoli
50 cm, and cut the central head before flowering to trigger lateral side shoots.
Headed cabbage
50 to 70 cm depending on the type; a tight cabbage produces a head half the size.
Brussels Sprouts
60 cm, staking recommended, and harvest the apples from the bottom upwards after the first frosts.
🫙 A supply lasting several seasons
A box of 12 varieties will inevitably be sown across several seasons, and these seeds handle that without any trouble. Store opened packets dry, cool and away from light, in an airtight container rather than loose in a drawer. A cabbage seed kept this way retains good germination rates for 4 to 5 years. After that, a test with 10 seeds between two sheets of damp paper will tell you within a week whether the packet is still worth a seedling tray. Our Pak Choy nain page shows what a fast-growing cabbage can produce on its own, and the article on germination failures covers the other causes.
Technical specifications
The essentials
- What you sow
- Organic cabbage seedsOne variety per labelled paper herb sachet, named on the front.
- The varieties in the set
- Chou-rave Wiener Violetter, brocoli Ramoso Calabrese, chou-fleur Snow Ball X, white cabbage, and red cabbage.6 or 12 distinct varieties depending on the assortment, all open-pollinated.
- Seedling period
- March to June, in a nursery bedWindow for mainland France, to be adjusted according to region.
- Sowing depth
- 1 to 2 cmEach packet states the exact value for its variety.
- Germination temperature
- 15 to 20 °CGrow medium temperature, not room temperature.
- Germination time
- 5 to 10 daysFrom the seedling stage, under these temperature conditions.
To budget for separately
- An insect-proof mesh
- Fine mesh, from the moment of plantingIt stops cabbage white butterflies and flea beetles where a late treatment saves nothing.
- Floor space required
- 40 to 70 cm between plantsA tight cabbage gives a head half the size.
In the box
- 1 box of organic cabbage seeds, one variety per grass-paper sachet.
- 1 label with the common name and Latin name on each packet
Number of varieties, variety names, packaging and origin: values stated by ZenGreens and noted on the packaging on 24/09/2026. Sowing periods, depths, temperatures and germination times: standard horticultural guidelines for these species in metropolitan France, to be confirmed on the packet received, which takes precedence.
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It covers preparing your order and then the transit time quoted by the carrier, counted in working days.
It is not a guaranteed delivery date: public holidays, peak periods, customs or a carrier delay can extend it. The exact amount, in your currency, is worked out in the cart once your address is entered.
The kit, being light, is dispatched on its own or with the rest of your order. Exact shipping costs and final delivery times are displayed at checkout once your address has been entered. Outside the European Union, import duties and taxes remain the responsibility of the recipient.
Frequently asked questions
8 questions
6 key questions, 8 in the detailed view
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