Most gardeners know hypericumas a groundcover that is commonly called creeping St. John’s wort or Aaron’s beard. Native to Turkey and Bulgaria, this species, Hypericum calycinum, is a semi-evergreen ...

Hypericums all have bright golden yellow flowers of a distinctive angled shape, and they have a great habit of flowering over a long period. The hypericum best known in gardens is the tall shrub ...

- creeping evergreen shrub with bright yellow star-shaped summer flowers; useful as ground cover ...

Talk about multi-tasking. A new study reveals that in the St. John's Wort plant, Hypericum calycinum, the same chemical not only attracts pollinating insects but also deters herbivores that pose a ...