From our own production – freshly in stock
100% organic, GMO-free
High-quality seeds with excellent germination

Varieties for professional growers

Here you will find a selection of varieties that have proven themselves in organic cultivation, and so are especially suited for professional growers. Some varieties result from our own breeding program, among which our specialisms squash, tomatoes and peppers. Furthermore, we also offer other proven varieties, in close co-operation with co-breeders from the field. At De Bolster you can find the best assortment of organic seeds for a successful organic cultivation.

> Leaf vegetables
> Brassica
> Legumes
> Fruit vegetables
> Root vegetables
> Herbs
> Flower Mixtures
> Green Manure


Bloemkool Liria F1 PRO
Cauliflower 'Liria F1' Brassica oleracea 1442
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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Quantity
Size € 5,49
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Boerenkool Darkibor F1 | Brassica oleracea PRO
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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Quantity
Size € 5,49
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Broccoli ‘Belstar F1’ PRO
Broccoli 'Belstar F1' Brassica oleracea 1465
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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Quantity
Size € 5,49
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Broccoli Bobby PRO
Broccoli 'Bobby' Brassica oleracea 1461
Broccoli 'Bobby' is a fast-growing, open-pollinated variety for late summer and fall cultivation. Grows uniformly on long stems with nice green, average-sized crowns.
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Quantity
Size € 3,39
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Broccoli Covina F1 – Brassica oleracea PRO
Broccoli 'Covina F1' Brassica oleracea 1467
Broccoli 'Covina F1' is a reliable variety for growing in summer and early autumn. Also performs strongly in changeable weather conditions.
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Quantity
Size € 5,49
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Koolrabi Kolibri F1 – Brassica oleracea PRO
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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Quantity
Size € 5,49
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Koolrabi Konan F1 – Brassica oleracea PRO
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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Quantity
Size € 5,49
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Palmkool Nero di Toscana PRO
Kale 'Nero di Toscana' Brassica oleracea 1505
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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Quantity
Size € 2,99
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Rode kool Klimaro F1 – Brassica oleracea PRO
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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Quantity
Size € 5,49
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Romanesco Veronica F1 PRO
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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Quantity
Size
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temporarily unavailable
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Savooiekool Cantasa F1 – Brassica oleracea PRO
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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Quantity
Size € 5,49
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Spitskool Caraflex F1 PRO
White Cabbage 'Caraflex F1' is a very pointed type of cabbage with a nice green colour. It has smooth outer leaves and very uniform heads. Suitable for medium-length storage. 
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Quantity
Size € 5,49
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