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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


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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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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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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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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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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Scheutjesbroccoli Santee F1 – Brassica oleracea PRO
Purple sprouting broccoli 'Santee F1' is a compact purple broccoli that produces delicious, tender spears. This healthy vegetable is high in antioxidants.
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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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Spruitkool Hemera F1 PRO
Brussels sprouts 'Hemera F1' is a winter variety that withstands frost well. The short, sturdy plants form attractive sprouts that are not prone to purple discolouration.
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Spruitkool Irene F1 PRO
Brussels Sprouts 'Irene F1' is an early variety. Productive with a mild flavour. Round sprouts with good keeping quality. Highly resistant to bolting.
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Witte kool Impala F1 – Brassica oleracea PRO
White cabbage ‘Impala F1’ is a productive, healthy and uniform variety with heads set high off the ground. This good storage cabbage has a snow-white interior with open green outer leaves.
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Chinese kool Emiko F1 PRO
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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Paksoi Bopak F1 – Brassica rapa NEW!
Pak Choi 'Bopak F1' is highly resistant to clubroot and perfect for carefree cultivation. It is a fast grower with smooth white stems and glossy dark green, broad leaves.
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