‘Golden Fleece’ cow parsley or wild chervil (Anthriscus sylvestris ‘Golden Fleece’) produces eye-catching clumps of deeply cut, bright yellow foliage, with lacy white flower clusters in late spring to early summer atop 2- to 3-foot-tall, branching stems. Honestly, I like this strain much better for its ferny foliage than the flowers, because–in my garden, at least–the bloom stems seem to be a bit leggy and aren’t nearly as abundant as they are on ‘Ravenswing’. Sites with relatively moist, fertile soil and morning sun and midday or afternoon shade, or all-day light shade, seem to suit the plants best. Cow parsley usually acts like a perennial; Zones 3 to 8.
I have seen ‘Ravenswing’, the dark-leaved counterpart of this beauty, reseed heavily in gardens here in southeastern Pennsylvania where it is not supervised. I’ve been growing ‘Golden Fleece’ for only a few years and gather practically all of the seeds, so I haven’t found many unwanted volunteers here, but I image it could sow just as readily if given the opportunity. (I very much recommend cutting off the flowering stems once the blooms fade, as that will prevent self-sowing and can encourage a flush of bright new leaves too.)
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 (only a small quantity) in late June 2020. Each packet contains at least 15 seeds.