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Canadian Grass Pollen Allergy Guide

Canadian Grass Pollen - Infographic

What to Know

Grass pollen allergies are at their worst in Canada between mid-May to the end of July.1

Track local pollen levels by following REACTINE® on Twitter at @ReactineCA.

Common Pollinators

Bluegrass2,3

Where: All provinces and territories except Nunavut

When: May – August

Ryegrass4

Where: BC - Quebec

When: March – June

Bermuda5

Where: BC, Nova Scotia, PEI and Quebec

When: March – July