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 competing with tree seedlings, ultimately affecting forest regeneration and species diversity.

They also pose a threat to human health, as seen with toxic giant hogweed and wild parsnip, and can make recreation areas less enjoyable due to increased ticks, dense growth, and fewer birds.

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.

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Author summary: Invasive plants harm ecosystems and humans.

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Exeter Lakeshore Times-Advance Exeter Lakeshore Times-Advance — 2025-11-03

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