Broadleaf Weed – Old World Diamond Flower

(Hedyotis corymbosa)

Old World Diamond Flower – also known as Flat-top Mille Graines or, simply, Diamond Flower – is in the summer annual category of broadleaf weeds. Hedyotis corymbosa occurs in all moist turf and in most disturbed areas and is a common pest on golf courses. Old World Diamond Flower can be found throughout much of the American southeast.

Identifying Old World Diamond Flower-

This broadleaf weed can be identified as a smooth, spreading summer annual with branched stems. Its lanceolate leaves grow opposite along the stems, which can grow close to the ground. Diamond Flower also features a weak, shallow taproot.

Old World Diamond Flower features small white flowers, usually forming in groups of two or more on long stalks from the tip of a long common stalk. Diamond Flower blooms from midsummer until frost and reproduction is by seed.

Old World Diamond Flower Control-

Proper cultural practices, such as proper mowing and watering, can help to prevent Old World Diamond Flower by creating dense turf, which inhibits the weed’s ability to grow. Physical removal (i.e. “weed pulling”) can be effective, although you will run the risk of spreading the seeds to additional areas of your lawn and landscaping.

Old World Diamond Flower

Scotts LawnService uses a selective systemic weed control program to fight Old World Diamond Flower in your lawn and landscaping, which ensures the herbicide is moved throughout the weed, killing it completely root and all.

Scotts LawnService is the trusted industry leader for professional quality lawn care. Our exclusive lawn care products include premium grass seeds and professional-grade fertilizers; our lawn service teams consist of highly trained, industry-certified professionals. Contact a representative today for Old World Diamond Flower control options available in your area and to learn how you can enjoy a lush, thicker lawn that only Scotts LawnService can deliver.