Cow parsley (Anthriscus sylvestris), also known as wild chervil, is a perennial that grows in clumps of lacy leaves. Upright, loosely branched stems carry airy heads of tiny white flowers in late spring to early summer. ‘Ravenswing’ is a seed strain that produces plants with dark foliage, ranging from deep purple to purple-brown to almost black. The plants reach 2 to 3 feet tall in flower (about 1 foot tall in leaf). They can tolerate full sun but typically prefer morning sun and afternoon shade or light all-day shade; evenly moist, fertile soil is a plus. ‘Ravenswing’ cow parsley is generally rated for USDA Hardiness Zones 3 or 4 to 9.
I have seen ‘Ravenswing’ reseed heavily in gardens here in southeastern Pennsylvania where it is not supervised (deadheaded after flowering). Be aware that the species Anthriscus sylvestris is considered to be invasive in some areas. For more information, see the plant’s information page at The Invasive Plant Atlas of the United States.
I collected these seeds in late June 2020. Each packet contains at least 25 seeds.