We have just finished cleaning our Ferula communis, Giant Fennel, seeds. This year our plant in Jekka's Herbetum looked spectacular. It is a member of the Apiaceae Family (the Carrot family) and How to Create a Bog Garden Longwood Gardens Fungus Gnats vs. Fruit Flies: A Simple Identification Guide Seed Sheets Keep an eye out for poison hemlock and wild parsnip, which are a threat to humans and animals. Both are common across Illinois and are in bloom this time of year.