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 provinces. Invasive plants can have severe consequences, including:
  - Reducing crop yield and increasing herbicide use, leading to higher costs and lower crop values for farmers.
 
  - Competing with tree seedlings, reducing forest regeneration.
 
  - Affecting species diversity and health in natural areas by reducing available resources.
 
  - Impacting human health, with toxic species like giant hogweed and wild parsnip.
 
  - Decreasing the enjoyment of recreation areas due to increased ticks, dense growth, and fewer birds.
 
English ivy is a significant concern, and its impact on the environment and human health must be addressed.
No specific quote available.
Author's summary: Invasive plants like English ivy harm ecosystems.
    
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 Exeter Lakeshore Times-Advance — 2025-11-03