Invasive plant of the month: English ivy

Invasive Plant of the Month: English Ivy

English ivy was introduced to Canada in the 1800s. Ontario has 441 known invasive plant species, the most of all provinces.

Invasive plants can have severe consequences, including reducing crop yield, increasing herbicide use, and reducing crop values for farmers. They can also hinder forest regeneration by competing with tree seedlings.

In natural areas, invasive plants affect species diversity and health by reducing available resources. Some invasive plant species, such as toxic giant hogweed and wild parsnip, can even harm human health.

Impact on Recreation Areas

Recreation areas overrun by invasive plants can become less enjoyable due to an increased number of ticks, difficulty walking through dense growth, fewer birds, and burs on clothing and pets.

Focus on English Ivy - Hedera helix

English ivy is native to Europe, western Asia, and northern Africa. It was introduced to Canada in the 1800s as an ornamental plant.

Author's summary: English ivy is a harmful invasive plant species in Canada.

Exeter Lakeshore Times-Advance — 2025-11-03