![]() Be sure to apply pre-emergence herbicides in the late fall or early winter, before the purple deadnettle starts to germinate. Post-emergence herbicides that contain metsulfuron or trifloxysulfuron-sodium can be used against purple deadnettle erupting in Bermuda grass or zoysia grass, but pre-emergence herbicides are much safer for other grasses. Check with your local nursery for grass seed better suited to these rough conditions. Sometimes, the thick shade a tree casts or a low spot that catches water can make it difficult for the grass that lives on the rest of your flat, sunny lawn to grow – this is when you need a special grass blend. Consider planting a grass more compatible with the growing conditions if you’ve got a spot in the yard that’s plagued with these plants. Growing a thick, healthy lawn is the first line of defense against these mint cousins since the grass will easily outcompete the weeds for nutrients and growing space. One or two purple deadnettle weeds popping up in the lawn can easily be plucked by hand and disposed of as soon as they appear, but a larger population requires a more complicated solution. ![]() Couple that with the thousands of seeds each plant can release persisting in the soil for years, and you’ve got one durable weed on your hands. Getting rid of deadnettle weeds is much more challenging than dealing with many other annual weeds because they tend to go to seed before mowing season even begins. You’ll recognize it and its cousin, henbit, by their distinctive square stems that hold up an umbrella of tiny flowers and small, pointed leaves reaching up to an inch (2.5 cm.) long. ![]() While these plant species die as annuals, their seeds remain safely buried and will germinate the following spring. This vigorous, fast-growing perennial produces purple, pink, or white flowers and can form a thick ground cover. It is a winter annual plant and is commonly mistaken for its cousin. The purple dead nettle is a hardy plant that blooms in the spring. Like other mints, purple deadnettle is an aggressive grower that spreads like wildfire anywhere it can get a foothold. Purple Deadnettle is a common annual weed that is very aggressive and spreads rapidly. Purple deadnettle ( Lamium purpureum) is a common annual weed that belongs to the mint family, which explains why it’s such a pest. It sounds tricky, but don’t fear! We’ve got some deadnettle weed management pointers to help you with this formidable foe. Control of deadnettle is just one such task that turf keepers face year after year. When you’re maintaining a sea of grass, every plant that isn’t yours must be eradicated. Many homeowners find a manicured and weed-free lawn to be just as pretty as any rose garden. You don’t have to be a die-hard gardener to keep a great-looking community of plants around your house.
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