organic seeds for

growers' success
Premium organic seeds
100% organic, GMO-free
Fast delivery within Europe

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


Zomerpostelein
Summer Purslane is a very rapidly growing summer vegetable with bright green leaves. Mixing the seeds with sand makes sowing easier. Sow only when temperatures are warm enough.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Bladrammenas - Groenbemester – Raphanus sativus NEW
Green manure fodder radish can grow up to 80-110 cm in height. Adds a lot of organic matter to the soil when ploughed in. This versatile soil improver suppresses weeds and also controls soil-borne nematodes.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
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.
> read more
Please select volume
expected December 2021
> read more
Rozemarijn
Rosemary is a delicious smelling, evergreen bush that requires shelter. It is a versatile spice, which can be used for soup, meat, bread and garlic butter. During harsh winter the plant has to be covered to protect from freezing. If cut regularly, the plant keeps its shape.
> read more
Please select volume
expected December 2021
> read more
Salie
Sage is a spice used for cooking and healing and the leaves can be used both fresh as dried. This herb is effective against a sore throat and is commonly known as soporific. Insects and butterflies on the contrary, become hyperactive after consuming sage.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Bonenkruid
Summer savory is an annual, low and bushy crop. The leaves and young sprouts are harvested just before flowering and taste a little spicy. This herb can be used freshly or dried. It can be used excellent in dishes with beans, but also in soups, salads or dishes with cabbage.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
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.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Winterrogge - Groenbemester – Secale cereale
Forage Rye can be sown as a green manure until late in the season (August-October). This crop is tolerant to frost, provides a quick effective groundcover, and is deep rooting.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Gele mosterd - Groenbemester – Sinapis alba
Yellow mustard is a rapid growing, annual crop and is very suited as green manure. It is mostly used for the supply of organic matter to the soil and practically never for consumption. The crop freezes to death in winter.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Cherry-pruimtomaat Bolstar Baloe F1
Deliciously sweet cherry-plum tomato, ideal for summer production in polytunnels and unheated greenhouses. ‘Bolstar Baloe’ produces both single and double trusses, with a beautiful herringbone pattern.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Tomaat Bartelly F1
Very flavoursome cherry tomato, ideal for summer production in polytunnels and unheated greenhouses. ‘Bartelly’ is a favourite with many growers.
> read more
Ready to ship: 3-4 days
Please select volume
> read more
Tomaat Bolstar Sensatica F1
Deliciously sweet, semi-long life plum tomato, suitable for polytunnel production and slightly heated greenhouses. The plum-shaped fruits, which weigh about 80 gm, have a very good flavour, especially compared with other ‘Roma’ tomatoes. 
> read more
Ready to ship: 3-4 days
Please select volume
> read more