Hun Ken is a Traditional cultivar/landrace collected in China (124°00'09'' E 47°21'11'' N) in 1956 by a expedition by Leibniz-Institut für Pflanzengenetik und Kulturpflanzen. This species is native to northern Asia and appears to have a history of both wild collection and cultivation in that region. Unusual in cultivation around here. Perennial to zone 5, maybe colder. Best in full sun and good soil, but probably tolerates partial shade and less then great soil. Packet contains 1/4 tsp, ~100 seeds. Sow in spring, generally germinates fine in warm conditions, but if germination is slow, try alternating temps.