organic seeds for

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

Root vegetables professional

De Bolster supplies certified organic seed for producing various root vegetables such as scorzonera, onions and carrots. Familiar varieties in our range of organic seeds include radish 'Cherry Belle' and carrot 'Nantes 2' (a summer variety). The varieties we supply were developed under organic conditions and are especially suitable for professional vegetable cultivation. Our carrot assortment offers you a selection of orange, yellow or white varieties suitable for the earliest to the late summer and autumn harvests. Whatever the variety, the result will be beautiful, uniform and exceptionally flavourful. De Bolster offers the best organic seeds for successful organic cultivation.


Ui Albion F1 – Allium cepa NEW
Onion ‘Albion F1’ is a lovely white, highly uniform and productive variety suitable for the fresh market and for short-term storage. It has a pungent yet slightly sweet flavour.
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Ui Hylander F1
Onion 'Hylander F1' is a middle-early, mildew-resistant variety. Nice round and uniform onions. Good skin and storage quality. High yielding.
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Ui Redlander F1 – Allium cepa NEW
Onion ‘Redlander F1’ is an early variety of red onion with a high downy mildew resistance. Has excellent keeping qualities and uniform, high yields.
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Knolselderij Balena F1 – Apium graveolens NEW
Celeriac ‘Balena F1’ has healthy, strong, upright foliage and a fast-maturing root with lovely firm, white flesh. This breed is highly resilient to bolting and exceptionally tolerant of cold.
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Koolraap Helenor F1 NEW
Swede 'Helenor F1' has a beautiful, purple color and yellow flesh that tastes sweet and is of high quality. The round bulb reaches a weight of 0.6 to 1.2 kg.
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Zomerwortel Napoli F1
Carrot 'Napoli F1' is perfect for the earliest cultivation period. Slightly conical roots with good colour. A productive variety with strong foliage. A Nantes type.
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Zomerwortel Negovia F1
Carrot 'Negovia F1' is suitable for late summer and autumn cultivation. A Nantes type. A very uniform variety with good flavour.
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Zomerwortel White Satin F1
Carrot 'White Satin F1' is suitable for late summer and autumn cultivation. This variety produces long, smooth, pure white carrots. A Nantes type.
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Zomerwortel Yellowstone F1
Carrot 'Yellowstone' is a versatile variety with a beautiful yellow colour. Suitable for both late bunching carrots or for producing winter (storage) carrots.
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Knolvenkel Solaris F1 – Foeniculum vulgare NEW
Fennel ‘Solaris F1’ is an early maturing variety that is not prone to dryness or woodiness. It produces strong, heavy bulbs with a juicy texture and a fine aniseed flavour.
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Radijs Rudolf – Raphanus sativus NEW
Radish ‘Rudolf’ is flavoursome, very crisp, round and bright red. The attractive dark leaves are short and upright. An open-pollinated variety with all the uniformity and vigour of a hybrid.
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Schorseneer Verbeterde Reuzen Nietschieters
One of the most productive varieties with remarkable length and smoothness of root. ‘VRN-Enorma’ has attractive foliage and is resistant to hollow crown. A uniquely delicious vegetable.
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