– Short lived perennial growing from 1-foot to 3-feet tall. – Flowers are purplish-pink, urn or vase-shaped, about 1/2-inch to 1-inch tall with dark comb-like bracts under the bloom. – Knapweed ...

Farmer Joe Hoffman has been battling a problem. The problem is insidious: an invasive weed that has been in Michigan since 1911. Though not a new invasive plant, the knapweed has been taking over ...

December’s Weed of the Month is not one, but three species of knapweed: brown knapweed (Centaurea jacea), meadow knapweed (C. x moncktonii), and diffuse knapweed (C. diffusa). All three species are ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. To the folks who requested spraying spotted knapweed on the Kagy hillsides last July and to ...

We were driving along a beautiful grassy hillside covered in wildflowers when my wife pointed to one large bloom and said how sad it was that knapweed had invaded the field. We should have stopped to ...