Photo Credit: Nicole Kimmel, Alberta Agriculture & Forestry
Garlic mustard is native to Europe and Asia and was introduced to North America in the 1960s as a medicinal and culinary herb.
Garlic mustard releases chemicals into the surrounding soil which can inhibit the optimal growth of native plants. It out-competes native understory species in forests which can lead to an overall loss of biodiversity.
Each of the white flowers has four petals and is 5-10 mm wide.
The young leaves are dark in colour and range from heart to kidney-shaped. Mature leaves are characteristically heart-shaped, have toothed edges and are alternately arranged along the stem.
As the species name suggests, the leaves omit a garlicky odour when crushed.
This plant grows in moist woody areas and can reach up to 1.5 m tall.
Learn more about this species:
See Fact Sheet - Alberta Invasive Species Council