Invasive Plant of the Month: English Ivy
English ivy, also known as Hedera helix, is native to Europe, western Asia, and northern Africa, and was introduced to Canada in the 1800s as an ornamental plant.
Ontario has 441 known invasive plant species, the most of all the provinces. Invasive plants can have severe consequences, including reducing crop yield, increasing herbicide use, and reducing crop values for farmers.
- Reducing forest regeneration by competing with tree seedlings
- Affecting species diversity and health in natural areas by reducing available resources
- Impact on human health, such as toxic giant hogweed and wild parsnip
- Decreasing the enjoyment of recreation areas due to increased ticks, difficulty walking through dense growth, and fewer birds
English ivy can outcompete native vegetation, causing a decline in biodiversity and ecosystem health.
Author's summary: English ivy is a harmful invasive plant species in Canada.