ADER 1.1.12: Diversifying the range of vegetable crops by introducing into cultivation less commonly grown species (Rheum rhabarbarum – rhubarb), species from various parts of the world (Tragopogon porrifolius – salsify) and species from the wild flora (Allium ursinum – wild garlic, Armoracia rusticana – horseradish, Ornithogalum umbelatum – star-of-Bethlehem), all tolerant of heat and water stress