Most species have finely divided leaves (often aromatic) and clusters of daisylike flowerheads. Some have gray to nearly white foliage.Tanacetum vulgare
Native to Europe. Coarse, rather weedy garden plant to 3 ft. tall and 2 ft. wide, with finely divided, bright green, aromatic (some say smelly) leaves. Small, buttonlike yellow flowers appear in late summer. Thin clumps yearly to keep in bounds. This plant is no longer used medicinally, though it is still grown in herb gardens. T. v. crispum, fern-leaf tansy, grows to 2 1/2 ft. tall; it has finely cut foliage and is more decorative than the species. ‘Isla Gold’ has golden yellow foliage.
Tight, dense, spherical red-purple flower clusters top 2-ft. stems in summer. Spreads freely.
This perennial species can reach 10 ft. tall and 4 ft. wide; it has light green, deeply lobed leaves t...
Rising above clumps of fleshy, blue-green leaves, the purplish blue upper leaves and flower bracts of ...