Weed Wednesday – Common Mullein

Weed Wednesday – Common Mullein

Common Mullein is a noxious weed spreading across Alberta, often found in disturbed areas like roadsides, pastures, and railroads. Early detection and management are essential.

How to identify it:

  • Large, soft, gray-green, fuzzy leaves arranged in a rosette at the base
  • Tall flowering stalks that can reach 1–2 meters with small yellow flowers
  • Woolly texture on leaves and stems
  • Blooms from mid-summer into fall

Why it’s considered noxious:

  • Competes with desirable forage and crops, reducing productivity
  • Forms dense patches that are difficult to remove once established
  • Produces thousands of seeds that spread easily by wind and animals

Early action helps prevent the spread and protects your land.

For more on Common Mullein, visit: Mullein, Common – Alberta Invasive Species Council