Black Salsify 'Duplex' (Scorconera Hispanica L.) Vegetable Heirloom Seeds One packet contains 10 seeds safely packed in nitrogen sealed hermetic bag for protection, maintaince of longer viability and comfortable storage.iability and comfortable storage. Perennial dietary vegetable, popular for its especially delicious, nutty like flavour, rich nutritional value and low calorie content. Long, thin black roots are delicious raw, steamed, cooked or baked. Hardy, can be left outside during winter. Harvest in early spring or late autumn. Non GMO, Non Hybrid, Untreated, Premium Quality Seeds coming from small, non commercial farmers. All natural, beautifully packed highest quality, germination tested seeds for own garden, to be given as gift or for long term storage.