DSP Ltd is maintaining and propagating varieties of vegetables species bred by the Swiss research stations for agronomy, amongst them the famous "Zefa" varieties, as well as ameliorated local varieties. For this purpose, DSP Ltd works together in a network with growers who produce either organically or conventionally.
Numerous varieties commercialized by DSP are especially demanded by amateur gardeners searching specialties and authentic flavor. Such niche products contribute to the conservation of varietal diversity.
DSP provides the wholesale with seeds and offers service features to the commerce of vegetables grains.
Vigorous cutting lettuce variety. Curled, tender leaves, leaf edges strongly copper red coloured, leaf blade light green. Winterlettuce (sowing in fall an harvest in spring), but can be grown throughout the year. Tends to produce heads when thining out.
Species: | Leaf lettuce |
Latin: | Lactuca sativa div. varietas |
Conventional: | No |
Bio: | Yes |
Annual with rapid growth. Piquant taste.
Species: | Rocket |
Latin: | Eruca sativa |
Conventional: | No |
Bio: | Yes |
Long, red, cylindrical and edgeless, bigger than the type Nantaise. Firm and carnous, excellent storage life.
Species: | Carrot |
Latin: | Daucus carota L. |
Conventional: | No |
Bio: | Yes |
Erected growth habit, leaf medium green, and brilliant with light glaucosity. Stipes are carnose and broad (5-8 cm), white to crème coloured. Slowly runs to seed. Berac can be cultivated in the greenhouse and in the field.
Species: | Swiss chard, leaf beet |
Latin: | Beta vulgaris L. var cycla f. crispa. |
Conventional: | Yes |
Bio: | Yes |
Strongly curled with solid stems.
Species: | Parsley |
Latin: | Petroselinum crispum (Mill.) Nym |
Conventional: | No |
Bio: | Yes |
Annual, can be used freshly or dried.
Species: | Dill |
Latin: | Anethum graveolens L. |
Conventional: | No |
Bio: | Yes |
Simplistic but very aromatic leaves.
Species: | Parsley |
Latin: | Petroselinum crispum (Mill.) Nym |
Conventional: | No |
Bio: | Yes |
Even head with wide leaves, good storage life.
Species: | Endive |
Latin: | Cichorium endivia L. var latifolium Hegi |
Conventional: | No |
Bio: | Yes |
Local, robust Swiss cultivar with white, conical roots. Aromatic and intense taste. Used above all cooked.
Species: | Carrot |
Latin: | Daucus carota L. |
Conventional: | Yes |
Bio: | Yes |
Very decorative, slightly curled, green-brown leaves with red blade tip. Might be cut (very productive) or harvested as whole plant. Heat tolerant.
Species: | Leaf lettuce |
Latin: | Lactuca sativa div. varietas |
Conventional: | No |
Bio: | Yes |
Widely used spice plant in Japan with toothed, three-part leaves. Taste between parsley and celery. To season soups, vegetables, sushi etc. Perennial.
Species: | Mitsuba |
Latin: | Cryptotaenia japonica |
Conventional: | No |
Bio: | Yes |
Medium long, even, cylindrical and edgeless. Beautiful colour and good flavour, early.
Species: | Carrot |
Latin: | Daucus carota L. |
Conventional: | No |
Bio: | Yes |
Medium late to late variety. Very firm heads and white, smooth inner leaves , external leaves grey blue. Round, shielded head. Quite long stem. High yield. Especially apt to the production of very smooth, white sauerkraut.
Species: | Cabbage, kraut cabbage |
Latin: | Brassica oleracea L. var. capitata L. f. alba |
Conventional: | Yes |
Bio: | No |
Medium early variety, harvest from summer to fall (from August to November/December). Zefa Plus is a selection from the variety Dubouchet. Long (appr. 30 cm), very productive, blue-green, rather narrow and straight leaves. May be also used for bleaching.
Species: | Leek |
Latin: | Allium porrum L. |
Conventional: | Yes |
Bio: | No |
Round tuber, purple on the top, white at the lower part. Variety with excellent quality (aromatic, mildly acidic taste, crisp and firm pulp). Harvest earlier than Zefa Typ Weiss. Good storage ability. Used for the fresh food market and for the industry (compote).
Species: | Turnip |
Latin: | Brassica rapa L. var. rapa (L.) Thell |
Conventional: | Yes |
Bio: | No |
Round, completely white tuber. Variety with excellent quality (aromatic, mildly acidic taste, crisp and firm pulp). Harvest later than Zefa Typ Rot. Good storage ability. Good storage ability. Used for the fresh food market and for the industry (compote).
Species: | Turnip |
Latin: | Brassica rapa L. var. rapa (L.) Thell |
Conventional: | Yes |
Bio: | No |
Delley seeds and plants Ltd
Delley Castle
40, route de Portalban
CH-1567 Delley
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