Skirret (Sium sisarum) is a historically interesting and tasty root crop. Not particularly high yielding, but forgiving and perennial. After two years, or perhaps one in really favorable conditions, you get a small clump of thin, white, carrot-like roots. Flavors are subjective, but I find that it has a flavor somewhere between carrot and parsnip. It likes wet, shady conditions, so it may give you a food crop in areas that otherwise don’t get much use.
Low germination rate and slow as well. Give it two months – some will germinate in a week, others after you are sure there is no hope. Once you have a plant, you can propagate it vegetatively with ease, although this is another uncommon plant that would really benefit from some more enthusiasts growing it from seed on a regular basis.
Group 1 includes only plants grown from seeds of the few that survived a serious disease event here in 2014. The population had already been selected for improved root size and now hopefully also carries improved disease resistance. I think that the disease that the parent plants survived was celery blight, but I’m not certain.
Approximately 200 seeds. That ought to give you about 120 plants if you are patient and 40 if you aren’t. Even one plant should give you abundant seed in the first year and enough propagules to split into 6-8 new plants by the second year.