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Invasive Plants: What Ontario Gardeners Should Know

Some familiar garden plants can spread beyond the fence and harm local ecosystems.

Decorative nature illustration: Nature scene related to Invasive Plants: What Ontario Gardeners Should Know

Some familiar garden plants can spread beyond the fence and harm local ecosystems. Ontario's changing seasons and diverse landscapes make even a small backyard a fascinating place to observe nature.

What makes a plant invasive

Invasive species can spread and disrupt native ecosystems, sometimes crowding out local plants and altering habitat.

Know before you buy

Consult the Ontario Invasive Plant Council’s Grow Me Instead resources and choose appropriate native or non-invasive alternatives.

Avoid spreading fragments

Never dump garden waste in ravines, parks or natural areas. Clean tools when moving between sites.

Do not backyard-compost invasives

Seeds and plant fragments can survive home compost conditions. Follow local guidance for handling and disposal.

Identify first

Different species require different management. Confirm identification and consult current best-practice guides before attempting removal.

Ontario backyard reminder: Species, bylaws and growing conditions vary by region. Observe wildlife from a distance, choose locally suitable plants and check current municipal and provincial guidance before acting.

Keep exploring

Every backyard can become a little more welcoming to nature. Start with one change, notice what visits, and build on what works.

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