De Bolster offers an expanded range of brassicas seeds for the professional market

Broccoli | Green Calabrese | Brassica oleracea var. cymosa

Broccoli | Green Calabrese | Brassica oleracea var. cymosa

The broccoli Green Calabrese is closely related to cauliflower, although the leaves are more narrow and waved. Both the head, side shoots and sprouts can be eaten.

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Brussels sprout | Groninger | Brassica oleracea var. gemmifera

Brussels sprout | Groninger | Brassica oleracea var. gemmifera

Groninger Brussels sprout is an old landrace with a high variation. The sprouts that are not nicely closed can be used in stews. It is an ideal vegetable for autumn and winter.

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Cauliflower | Flora Blanca | Brassica oleracea var. botrytis

Cauliflower | Flora Blanca | Brassica oleracea var. botrytis

Cauliflower Flora Blanca is an old Dutch variety. It is one of the few varieties that do not produce a yellowish head, but a beautiful white one. Flora Blanca is most suited for autumn cultivation as this is easier compared to cultivation in summers.

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Cauliflower | Alpha | Brassica oleracea var. botrytis

Cauliflower | Alpha | Brassica oleracea var. botrytis

Cauliflower Alpha is slightly difficult to grow, but it is very tasty! This variety produces big, firm, white heads. For optimal white crops you should cover the crop against coloring.

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Chinese Cabbage | Granaat | Brassica pekinensis

Chinese Cabbage | Granaat | Brassica pekinensis

The Chinese cabbage Granaat produces big, long, green crops. Chinese cabbage cannot withstand a lot of frost and is sensitive to early bolting. This type of cabbage requires a nutritious and moist soil that is not too acid.

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Kale | Westlandse Winter | Brassica oleracea var. laciniata

Kale | Westlandse Winter | Brassica oleracea var. laciniata

This curly kale variety Westlandse Winter is a middle-high kale with green to dark green leaves. Growing this kale is easy. It can remain on the field during winter and obtains a sweeter taste when there was frost.

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Kohlrabi | Delicatesse White | Brassica oleracea var. gongylodes

Kohlrabi | Delicatesse White | Brassica oleracea var. gongylodes

Kohlrabi Delicatesse White gives nice light green tubers with white fruit flesh. Kohlrabi is a fast growing crop with a lovely taste and can be eaten both cooked as raw (in crudités).

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Kohlrabi Delicatesse blue | Brassica oleracea var. gongylodes

Kohlrabi Delicatesse blue | Brassica oleracea var. gongylodes

Kohlrabi Delicatesse Blue gives nice blue purple tubers with white fruit flesh. Kohlrabi is a fast growing crop with a lovely taste and can be eaten both cooked as raw (in crudités).

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Kohlrabi | Superschmelz | Brassica oleracea var. gongylodes

Kohlrabi | Superschmelz | Brassica oleracea var. gongylodes

This Kohlrabi variety Superschmelz should be planted somewhat broader than the Delicatesse White and Blue variety. The tubers can become at least 2 kg without getting that “woody” taste.

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Red cabbage | Langedijker Bewaar 2 | Brassica oleracea var. rubra

Red cabbage | Langedijker Bewaar 2 | Brassica oleracea var. rubra

Red Cabbage Langedijker Bewaar 2 is a beautiful middle-big, high-round red cabbage. This variety requires a nutritious and moist soil.

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Savoy Cabbage | Westlandse Putjes | Brassica oleracea var. sabauda

Savoy Cabbage | Westlandse Putjes | Brassica oleracea var. sabauda

The savoy cabbage Westlandse Putjes is a dark green, curly cabbage, of which the top leaves are not completely closed. This explains the Dutch name “putjes” (wells). It can be harvested for a long time, i.e. from the end of summer until winter.

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Savoy Cabbage | Bloemendaalse Gele | Brassica oleracea var. sabauda

Savoy Cabbage | Bloemendaalse Gele | Brassica oleracea var. sabauda

The savoy cabbage Bloemendaalse Gele is the hardiest breed of all savoy cabbage varieties. The green-yellow (turning into gold-green) slightly curled cabbage has a very good and tender taste.

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White cabbage | Langedijker Bewaar | Brassica oleracea var. alba

White cabbage | Langedijker Bewaar | Brassica oleracea var. alba

White cabbage Langedijker Bewaar is a middle-big round head cabbage and very suitable for storage. It should be grown on a nutritious and moist soil.

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White Cabbage | Filderkraut | Brassica oleracea var. alba

White Cabbage | Filderkraut | Brassica oleracea var. alba

White cabbage Filderkraut is the tastiest one of the white cabbages. This variety has a smooth and somewhat sweeter taste in comparison to other varieties and it can be used for sauerkraut as well.

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White Cabbage | Roem van Enkhuizen | Brassica oleracea var. alba

White Cabbage | Roem van Enkhuizen | Brassica oleracea var. alba

White cabbage Roem van Enkhuizen is a relative fast growing, heavy cabbage for the production of sauerkraut in September. This variety is rather sensitive to cracking. It should be grown on a nutritious and moist soil.

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