Parks Canada is hoping to head off millions of invasive non-native seeds trying to get established in Waterton.

Officials say ecological renewal in Waterton Lakes National Park began immediately after the Kenow Wildfire with grasses, shrubs, wildflowers, and small seedling trees growing back at lower elevations.

However, they say the wildfire also created a natural disturbance on the landscape where invasive plants, like spotted Knapweed, can also thrive.

Starting at 9am Saturday, August 10th, volunteers can dig in and contribute to the protection of the park by taking part in the Knapweed Rodeo.

Parks Canada says pulling a single plant can prevent the spread of 250,000 seeds.