organic seeds for

growers' success
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.

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> Green Manure


Pompoen Solor PRO
Winter Squash 'Solor' Cucurbita maxima 1665
Orange/red winter squash with beautiful, uniform fruits. ‘Solor’ is a trailing, open-pollinated variety with a good, uniform shelf life.
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Pompoen Tractor F1 PRO
Orange winter squash with beautiful, large fruits. Bush type with short vine and 1-2 fruits per plant. Very high yielding and good shelf life. ‘Tractor’ is easy to cook and has a good, mild taste.
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Pompoen Uchiki Kuri PRO
Orange-red squash with fruits varying in weight from 0.8 to 2 kg. Trailing type with 1-2 fruits per plant.
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Bolcourgette Ola Redonda – Cucurbita pepo PRO
Round courgette ‘Ola Redonda’ has round, light green fruits with white speckles. It is a high-yielding variety with fruits ready to pick every day.
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1355 Courgette Ola Gabriella F1 PRO
Productive yellow courgette with a mild, sweet taste. This plant has a parthenocarpic habit so the fruits set early in the season without the presence of male flowers.
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Courgette Onega F1 – Cucurbita pepo NEW!
Courgette 'Onega F1' is a strong, mid-early, highly productive variety. Thanks to its great field tolerance to viruses, fruit blight and mildew, it can be harvested up until the end of the season.
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Zomerwortel Napoli F1 PRO
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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Rucola Rochelle PRO
Wild Rocket 'Rochelle' Diplotaxis tenuifolia 1766
Wild rocket 'Rochelle' has been selected on resistance for downy mildew and hardly bolts. Suitable for greenhouse and outdoor cultivation, with healthy, dark-green leaves and a pleasantly spicy taste.
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Rucola Esmee – Eruca sativa PRO
Rocket 'Esmee' Eruca sativa 1760
Tender salad rocket with beautifully delicate pinnate leaves. The three-dimensional leaf shape helps create a firm, open structure in salad mixes and stops the leaves from sticking to the packaging.
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 Groenbemester – Fagopyrum esculentum PRO
Buckwheat - Green manure Fagopyrum esculentum 4070
Buckwheat is a fast growing crop and an excellent plant for bees. This crop requires a sunny location and a poorly fertilized ground with preferably a pH of around 5. When the plant drops its first seeds, you can cut the whole crop and let it dry.
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