organic seeds for

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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 PRO
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 PRO
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 PRO
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 PRO
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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1412 Celeriac Monarch PRO
Celeriac 'Monarch' Apium graveolens 1412
Celeriac ‘Monarch’ is a reliable variety that has proved its worth for more than 40 years. The large roots are wonderfully white on the inside and have a delicate, nutty flavour.
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Gele biet Boldor - Beta vulgaris subsp. conditiva NEW!
Beetroot 'Boldor' Beta vulgaris subsp. conditiva 1068
Golden beetroot 'Boldor' has sturdy, healthy leaves and globe-shaped, smooth roots with an orange skin and beautiful bright-yellow flesh. Can be eaten both raw and cooked.
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Rode biet Boro F1 – Beta vulgaris PRO
Beetroot 'Boro F1' Beta vulgaris subsp. conditiva 1055
Beetroot 'Boro F1' has a lovely red colour both on the inside and outside. The variety keeps well in the autumn and winter.
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Koolraap Helenor F1 PRO
Swede 'Helenor F1' Brassica napus 1591
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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expected late 2026
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Zomerwortel Napoli F1 NEW!
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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2059 Zomerwortel Negovia F1 PRO
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 Yellowstone F1 PRO
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’ Foeniculum vulgare 1421
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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