(aka: Angelica verticillaris) If you like Queen Anne's lace, you'll be blown away by the bold, architectural giant milk parsley, Peucedanum verticillare. Peucedanum verticillare is a short-lived perennial carrot-relative (Apiaceae) that forms a basal rosette of parsnip-like foliage, topped, starting in late May (NC) with broom-handle sized glaucous purple stalks that rise to 8' tall. Starting in late May (NC), the giant Queen Anne's lace-like inflorescences open atop the stalks, each composed of hundreds of small greenish-white flowers...a delight for garden pollinators. Peucedanum verticillare grows best in slightly moist soils (acidic to alkaline), where it will reseed if not dead-headed. Although toxic if eaten, Peucedanum verticillare has long been used as a diuretic and as a cure for flatulence, so underplant with beans and dine away.