I will send you 100 fresh seeds of Golden Alexanders (Zizia aurea) for postage (2 stamps). This native American wildflower is a host plant for the Eastern Black Swallowtail and is a hardy perennial in Zones 4-9. It has umbels of golden flowers in early spring and the foliage remains deep green and looks great until frost. Seeds should be winter sown or will require three months of cold, moist stratification in your fridge to germinate.

Here is a link that might be useful: Golden Alexanders, Zizia aurea