We take care of the preservation and propagation of vegetables


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.


Zefa Wädenswil | Onion

Zefa Typ Weiss | Turnip

Zefa Typ Rot | Turnip

Zefa Tardo | Fennel

Zefa Plus | Leek

Zefa Fino | Fennel

Winterwonder | Head lettuce

Weinländerin | Runner beans

Weggisser | Sugar pea

Victoire | Bush beans / dwarf beans

Thurner | Cabbage, kraut cabbage

Schweizer Riesen | Sugar pea

Rouge de Genève / Red of Geneva | Onion

Rose of Berne | Tomato

Robella | Oakleaf lettuce

Red Russian | Kale

Red Army | Amaranth

Plainsman | Amaranth

Paradiesler | Savoy cabbage

Oriole orange | Swiss chard

Nantaise | Carrot

Mitsuba (japanese parsley) | Mitsuba

Merveille d'octobre | Bush beans / dwarf beans

Lollo Rossa | Leaf lettuce

Lollo Bionda | Leaf lettuce

Laibacher Eis | Batavia lettuce

Küttiger | Carrot

King of May | Head lettuce

Jaune de Savoie | Onion

Isbrächer | Endive

Green Giant | Amaranth

Grasse de Morges | Romaine lettuce

Golden Giant | Amaranth

Genovese | Basil

Frühes Wunder | Pea

Frühbusch | Zucchini

Four seasons | Head lettuce

Flat leaf | Parsley

Epineux Argenté de Plainpalais | Cardoon

Dill | Dill

Demi long de Guernesey | Parsnip

Curly | Parsley

Cherry Belle | Radish

Charlotte | Swiss chard, leaf beet

Cascadia | Sugar snap peas

Camelina | Camelina

Burgundy | Amaranth

Blauschokker | Pea

Berac | Swiss chard, leaf beet

Belicumer | Carrot

Attraktion | Head lettuce

Annual | Rocket

American | Leaf lettuce

Further species


Delley seeds and plants Ltd
Delley Castle
40, route de Portalban
CH-1567 Delley

+41 26 677 90 20

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