Tanacetum vulgare Isla Gold Selaginella leave the stalks until seed

leave the stalks until seed have dropped

if you've ever eaten Amorphophallus konjac you can easily understand why it would make you lose weight

but well-drained organic soils give the best results

via the US National Arboretum (USNA #39665)

Tanacetum vulgare Isla Gold Selaginella leave the stalks until seedAs a garden designer, there aren't nearly enough bright gold foliage, well behaved perennials, but one of the finest is certainly Tanacetum 'Isla Gold'. This herbal garden beacon was shared in 1999 by friend and gardening expert Viki Ferreniea, and introduced by PDN to the American market in 2001. The deciduous clump to 18" tall x 3' wide emerges in early spring, with foliage so bright, it's visible from 50' away. In rich soils, a mid summer cutback