Purple (or red) Deadnettle is a winter annual often confused with henbit (Lamuim amplexicaule). Both weeds have square stems and belong to the mint family. The leaves of purple deadnettle are triangular in shape and less deeply lobed than henbit. The upper leaves of deadnettle are red to purple in color. The leaves of purple deadnettle have petioles with the petioles of the lower leaves being longer than the upper leaves. The flowers of purple deadnettle are light purple in color. The flowers are arranged in whorls and form in the axis of the upper leaves. Purple deadnettle spreads by seeds. Purple deadnettle is found throughout the United States and Canada.
Weed Photos: Courtesy of Dr. Lambert McCarty. Clemson University. Clemson, SC.
For optimum control, make your post-emergence herbicide application to purple deadnettle that is actively growing and in the seedling to flower stage of growth.
Pronto Vegetation Killer
Katana® Turf Herbicide
PowerZone® Broadleaf Herbicide
SpeedZone® Broadleaf Herbicide for Turf
SpeedZone® Southern Broadleaf Herbicide for Turf
Super Trimec® Broadleaf Herbicide
Surge® Broadleaf Herbicide for Turf
Trimec® Bentgrass Formula Broadleaf Herbicide
Trimec® Classic Broadleaf Herbicide
Trimec® Encore® Broadleaf Herbicide
Trimec® Southern Broadleaf Herbicide for Sensitive Southern Grasses