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purple weed flowers growing in yard

Purple weed flowers growing in yard

The Spruce / David Beaulieu

There are two types of ragweed, but the form that haunts lawns is Ambrosia artemisiifolia, common ragweed.

Creeping Charlie is one of the most stubborn of lawn weeds, but it has shallow roots and is easy enough to pull if you are patient and diligent. It is also susceptible to control using household borax.

This member of the mint family is also used as a salad green in some places.

Wild Violets (Viola spp)

But if you prefer a lawn of uniform turf grass, violets can be pulled, provided you extract the entire root system. Chemical controls include spot-treating with glyphosate (Round-Up) or using a broad-leaf weedkiller such as Weed-B-Gone. Fall is the best time to treat violets.

Although it's just a common lawn weed, one can count creeping Charlie among the fragrant plants. When you mow a lawn that has creeping Charlie mixed in with the grass, the fragrance is released into the air. Perhaps it's a small thing, but inhaling the pleasant aroma takes one's mind off the work involved in mowing.

Many weeds have a "silver lining" in the way of offering attractive flowers, pleasant scent, or by being edible. You can find no such advantage with crabgrass.

Common Ragweed (Ambrosia artemisiifolia)

But if you are resolute about eradicating the clover mixed in with your turf grass, there are both chemical and organic means to do so. For the former, seek a broadleaf herbicide intended for use on the type of grass that you’re growing (study the label on the bottle carefully). Along with other broadleaf weeds, clover will also be killed by such herbicides.

The Spruce / David Beaulieu

Purple weed flowers growing in yard

When these weeds go to seed, the flowers turn fluffy and white, much like dandelions. Canada thistles grow best in low fertility soil, so you have a better chance of eradicating them by increasing your soil’s fertility. This also has the added benefit of helping desired plants grow! As for getting rid of them, you should apply herbicide frequently to ensure that the extensive root system that keeps Canada thistles alive eventually dies.

A distant relative in the mint family, creeping charlie is able to survive in many different kinds of weather and terrain. This weed can prove to be difficult to kill, as they can easily survive the blades of a lawnmower. The way this weed grows is by spreading like a blanket all over your lawn. They compete for nutrients, and thus can damage your existing plants.

Musk Thistle/Nodding Thistle

It can be tempting to keep these weeds in your garden because of how attractive their flowers can be. Some of them can have medicinal and culinary uses, so they may be worth keeping around. More often than not though, you will want to get rid of these, lest they start taking over your garden!

However, if not carefully looked after, this plant can quickly get out of control, spreading onto your lawn and taking nourishment from other plants that need it. They grow vigorously in the midwest states, so if you live in the area, you may have encountered this weed in your garden already!


Wild violets are gorgeous flowers for sure, and can be a pleasing sight as they make their way across your lawn. However, there comes a point when you realize that they should not be creeping so fast and that maybe they should be stopped. These weeds can take over your whole yard if not taken care of!

Purple weed flowers growing in yard

Purple deadnettle (Lamium purpureum) is a common annual weed that belongs to the mint family, which explains why it’s such a pest. Like other mints, purple deadnettle is an aggressive grower that spreads like wildfire anywhere it can get a foothold. 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 long.

You don’t have to be a die-hard gardener to keep a great looking community of plans around your house. Many homeowners find a manicured and weed-free lawn to be just as pretty as any rose garden. When you’re maintaining a sea of grass, every plant that isn’t yours must be eradicated. Control of deadnettle is just one such task that turf keepers face year after year. It sounds tricky, but don’t fear! We’ve got some deadnettle weed management pointers to help you with this formidable foe.

What is Purple Deadnettle?

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. 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. 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.

Growing a thick, healthy lawn is the first line of defense against these mint cousins, since the grass will easily out compete the weeds for nutrients and growing space. 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. 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. Check with your local nursery for grass seed better suited to these rough conditions.

Deadnettle Control

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. Be sure to apply pre-emergence herbicides in the late fall or early winter, before the purple deadnettle starts to germinate.