St. John’s-Wort, Common

Regulated Act: Alberta Weed Control Act

Provincial Designation: Prohibited Noxious

Colour: Yellow

Latin Name: Hypericum perforatum

Fact Sheet1: Click Here to View/Download PDF

A person holding a yellow flower in their hand.
A close up of some small flowers on a tree
A close up of some yellow flowers in the sun
A close up of the yellow flowers on a tree
A close up of the leaves on a plant
A close up of some plants growing in gravel
A close up of leaves on the tree
A close up of the leaf on a plant
A close up of some flowers with green leaves
A bush with yellow flowers growing in the middle of it.
A close up of some yellow flowers
A person touching the flowers of a plant.
A close up of some yellow flowers with green leaves
A close up of yellow flowers with text