organic seeds for

growers' success
Premium organic seeds
100% organic, GMO-free
High germination

Brassica professional

Our range of brassica crops is especially suitable for professional vegetable cultivation. These include organic seeds for broccoli 'Belstar' and white cabbage 'Caraflex'. Regardless of your crop schedule, we will always be able to provide you with the right variety and type of seed. Choose from our cauliflower varieties for early summer and autumn production or broccoli resilient to secondary growth. All of our varieties are robust and productive. De Bolster offers the best organic seeds for successful organic cultivation.

Chinese kool Emiko F1
Chinese Cabbage 'Emiko F1' is suitable for spring, summer and autumn cultivation. Medium height, cylindrical shape. Highly resistant to tip burn. Reasonable storage length.
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Bloemkool Bermeo F1
Cauliflower 'Bermeo F1' is suitable for early summer cultivation. This cauliflower has a flattened, round head and good firmness. Leaves are reasonably self-covering.
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Bloemkool Liria F1
Cauliflower 'Liria F1' is suitable for early autumn cultivation. Good self-covering which keeps the head nice and white. A strong crop.
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Boerenkool Darkibor F1 – Brassica oleracea NEW
Curly kale ‘Darkibor F1’ is a high-yielding variety with dark green, strongly curled leaves that are highly resilient to yellowing.
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Boerenkool Redbor F1 – Brassica oleracea NEW
Curly kale ‘Redbor F1’ is super healthy! This highly productive variety is also easy to harvest.
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Broccoli ‘Belstar F1’
Broccoli 'Belstar F1' is suitable for growing in summer and autumn. These are compact, very productive plants. 'Belstar' is resilient to secondary growth and matures earlier than most varieties.
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Koolrabi Kolibri F1 – Brassica oleracea NEW
Kohlrabi ‘Kolibri F1’ has an attractive purple skin. The flesh is pure white and nearly fibreless. The bulb has a flat-round shape.
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Koolrabi Konan F1 – Brassica oleracea NEW
Kohlrabi ‘Konan F1’ has a mildly sweet flavour. The attractive, green, flat-round fruits have strong leaves and are also easy to harvest.
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Palmkool Nero di Toscana
Kale 'Nero di Toscana' is a typical Tuscan cabbage grown as kale. It can tolerate Tuscan winters but not Dutch winters.
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Rode kool Klimaro F1 – Brassica oleracea NEW
Red cabbage ‘Klimaro F1’ is perfect for autumn cultivation. An excellent variety for fresh use but also for storage. The heads are a lovely red colour and have a firm structure.
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Romanesco Veronica F1
Romanesco 'Veronica F1' is suitable for late summer cultivation. This unusual and attractive cauliflower consists of many little yellow-green ‘towers'. Very uniform crop.
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Savooiekool Cantasa F1 – Brassica oleracea NEW
Savoy cabbage ‘Cantasa F1’ is a healthy grower that is suitable for autumn and early winter cultivation. A flavoursome, well-presented cabbage for the fresh market and storage.
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