Noxious weeds infest about 100 million acres of North America and conquer more than 3 million acres each year. You can help stop the invasion of the non-natives by paying attention to what’s in your own yard.
Big and hearty, non-native plants often have few natural controls to limit their growth.
Some weeds come armed and dangerous with thorns that no browser would go near.
Prolific and deceiving in their charm, leafy ground covers can prevent sunlight from reaching germinating native plants underneath.
Root Talon, $47. Effective for shallow-rooted plants, shrubs, and saplings. Lampe Design, (866) 334-9964, www.lampedesign.com.
Weed Wrench, $82 to $189, depending on size. Effective for deeply rooted large plants and small trees. New Tribe, (866) 223-3371, www.newtribe.com