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How Do I Kill Thistles In My Lawn

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Managing Thistle Growing Between Landscape Plants

How to Kill Thistle in the Lawn | Controlling Thistle | Canada Thistle | Bull Thistle

If you are trying to manage Canadian Thistles in landscape areas that have desirable plants, you will need to use a selective herbicide. There are some products that work great on thistles but wont harm the majority of woody ornamental plants. This means it is possible to kill thistles in a bed of junipers or other groundcover if they are emerging, which is a task that hand-pulling would never accomplish effectively. Consult with a landscaping company that offers vegetation management services who will know what plants are able to handle these herbicides without any injury to desirable species.

No matter what your situation with thistles is, you will need to treat these areas many times throughout the growing season. Some areas will require 4-7 applications of herbicides throughout the year and even may warrant a few hand-pulling projects after weeds are wilted down and brown.

If you have problems with thistles in your landscape and would like to know the options for their control, please contact us.

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  • How Do I Get Rid Of Thistle

    Most of the spread of Canadian Thistles isnt even from seeding. This weed has an extensive root system that spreads underground shooting up new plants nearby. It doesnt take long until a large part of a landscape bed is full of this nasty weed. Property owners often make the problem worse by pulling weeds.

    Thats right, pulling them can make the problem worse. It is easy to pop of most of the weed, but you wont remove the entire plant. Most times there are segments of roots that are left in the soil. New thistles emerge in about 15 days after disturbance by tillage. Small root pieces of only just 0.25 inch long by 0.125 inch in diameter have enough stored energy to develop new plants! These small roots can survive at least 100 days without nutrient replenishment from photosynthesis. Canadian Thistle is one tough weed that wants to stay alive and re-grow!

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    What Is A Thistle:

    Thistle is one of the most stubborn herbaceous weeds of the daisy family that spreads using lateral roots and airborne seeds. It is harmful enough for your lawn also, it is classified as a noxious weed in many countries and states.

    You are already familiar with the term weeds. Weeds are unwanted or undesired plants that grow in your lawn. You have to get rid of these weeds if you desire a kid-friendly yard, as they can spread quickly in your grassland areas and borders. But it is not an easy task for you to remove it permanently to get a kid-friendly lawn.

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    How Do I Control Canada Thistle

    How do I kill thistle? : lawncare

    The best way to stop Canada thistle from taking up residence in your garden is to routinely inspect your beds for any signs of this unwelcome guest so you can take immediate action when needed. Granted, this weed is also sometimes called “lettuce-from-hell thistle because of its habit of coming back time and again, but, with persistence, it can be successfully controlled.

    Be warned, though: Dont attempt to pull these weeds out by hand, even if youre wearing gloves! Those rhizomes we mentioned above will simply spawn new plants when broken, causing the root system to grow even more.

    Heres what to do instead: Use Roundup® Weed & Grass Killer products to kill Canada thistle growing in your garden and landscape beds. The best time of year to do this is either in the spring after they emerge or in the fall when they are preparing to go dormant for the winter. Youll still need to check treated areas routinely for new thistle plants that might emerge from seeds or bits of broken rhizomes. If you spot any, just spray them. Because its so tenacious, you may have to spray multiple times before gaining complete control over Canada thistle.

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    Types Of Lawn Weeds And How To Get Rid Of Them

    No one wants weeds in their yard, and were about to explain why. Imagine creeping lawn weeds appearing in your yard when you wake up in the morning. Its not a happy sight, but luckily, their growth isnt inevitable.

    View in gallery

    There are many ways to find out which plants are weeds, how to get rid of them, and how to prevent them from growing again. We will cover that and more today in this guide on creeping lawn weeds.

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    How Toprevent Weeds Naturally

    If you decide not to use weed control products, there are natural herbicide s that can be used. One of the most common ways is killing weeds with vinegar . To use vinegar as a natural herbicide , put vinegar in a spray bottle or pump spray and spread it along with a brush. Like with other herbicides, vinegar cant differentiate between weed and grass. Spray the vinegar on the weeds in the early morning and only apply vinegar to the weeds and avoid hitting nearby plants.

    Controlling weeds in your lawn is doable when following the right steps and using the right products. But you may want to prevent weed problems before they become a crisis. The best way to tackle these problems early on is with pre-emergent weed care . Pre-emergent weed care every six to eight weeks can keep weeds from becoming a crisis and help you stay in control of your lawn, helping it grow green and lush.

    If you find weeds persist in your lawn, you may need the help of a lawn expert. Contact your local Lawn Doctor for lawn weed control .

    All year long, we look forward to sinking our feet into lush, radiant green grass. But nobody wants stringy ivy, coarse clovers or fuzzy dandelions grazing your toes instead!

    And once youve spotted one, youre sure to see more! Weeds seem to keep multiplying until theyre a huge, unattractive problem.

    Luckily, you can bring your lawn back to life by ridding it of weeds and boosting your turfs health. Heres how to get rid of weeds in your grass for good.

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    Q: How Can I Tell Them Apart

    Identifying thistles when they are in the rosette stage can be extremely difficult. However, the mature plants are easily distinguished:

    • Musk thistle has large, nodding, solitary flower heads with wide, single spine-tipped bracts that curve upward. Flowers are deep rose to violet or purple and rarely white. Stems are winged and spiny.
    • Yellow thistle has large, clustered flower heads with spiny, feathery bracts that almost enclose each flowers entire head. Flowers are yellow or reddish- purple and rarely white. Stems are covered in fine hairs and hairlike projections.
    • Milk thistle has solitary flower heads with stiff, spiny bracts that often curve downward. Flowers are purple, and the stems are hairless and not winged.
    Milk thistle rosette
    Musk thistle rosette

    How To Prevent Thistles From Growing In Your Lawn

    THISTLE: The Worst Weed In Your Garden! Here’s How You Get Rid Of It Along With Its Invasive Roots!

    Good lawn care practices will prevent Thistles and other weeds from growing back.

    Like I always say, weeds are a symptom of other problems as a result of poor lawn care practices.

    If you follow these lawn care treatments, your lawn will be so thick and lush, there will be no room for weeds like Thistle to grow.

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    When Is The Best Time To Get Rid Of It

    To fully eliminateCanada thistle, you must injure and deplete its root system. This is likely a process that will take repeated steps over multiple seasons. Unlike other plants, eliminating thistle is not done in one day.

    Fall is the best time to get rid of thistle. During the fall, the thistle is preparing for winter by recharging its root system. This allows herbicides to travel directly to the root system, maximizing injury to the plant.

    Late spring is the second most important time to get rid of the thistle. When the plant is getting ready to bud, it requires a lot of energy. This means it will be at a seasonal low of stored energy, making it more susceptible to herbicides.

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    How Can I Control Thistle In A Lawn

    Our back fence borders a golf course, and between us and the fairway is about 50 feet of “native” landscaping. This mostly means long, native grass .

    Unfortunately, next to one section of my backyard, a large patch of thistle grew up very tall a few years ago. While thistle can turn out very pretty…

    … it’s also terrible when even small growth appears in my lawn. Given how spiky it is, bare feet is not a good idea.

    I ended up spraying weed-killer on this patch and got it mostly knocked down. However, the bits that had already spread to my lawn have come back year after year. They don’t go away when I spray with lawn-safe weed killer, and I even had Tru-Green service for a while and nothing they did was successful either.

    I have tried pulling them out by hand, but our lawn, unique soil , and the toughness of the root system makes most of them simply break off at the soil, leaving them to come back in just a few weeks.

    Is there anything I haven’t tried? Or should I just keep trying to dig them out by hand?

    Note: since I’ve been more attentive to the patch on the other side of my fence, and it hasn’t gone to seed in a couple years, the weeds have stayed confined to about 200 sq. feet of my lawn.

    Lawn type: Kentucky Bluegrass

    • Peter TurnerJun 9, 2011 at 14:21
    • It could be that your soil pH or other qualities are off. You should focus on fixing that, over if you do any weed control.

    I can also offer a few suggestions for thistle:

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    Start Introducing Natural Predators

    Certain insects and as well as mammals eat thistle, and if you start adding them to your garden, the thistles population will start to get under control.

    This will make the thistle start feeling stressed again, and it will eventually stop from growing.

    Some of the insects that are known to eat thistle are the yellow star-thistle hairy weevil, yellow star-thistle bud weevil, stem mining weevil, flower weevil, thistle stem gall fly, thistly rosette weevil, and the thistle head weevil.

    Some of the animals that can eat thistle include, ponies, sheep, llamas, donkeys, and goats. For poisonous species, the cattle can take good care of them.

    Small Plants & Seedlings:

    weed control

    Cultivate prolifically: Thistle weeds demand dry, empty, and uncovered or unshaded soils for germination. If you pull off the weeds, they may leave roots and again grow up. As they cant grow in shaded areas, you can plant your favorite plants prolifically. For that their shadow diminishes the weeds and cant re-spout. Thistles are sun-loving plants. Keeping them away from the sun can vanish them.

    Wrap it: Mulching thistle seeds can exclude the germination of new plants. Wrap the seedlings or mulch them to inhibit germination.

    Snip smart: Mowing the lawn can inhibit maturing of thistle weeds. But it doesnt kill weeds at all. You better cut small thistle plants at the ground level. Shipping weakens their germination and finally kills them.

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    How Do You Kill Thistle Weeds Naturally

    Out of sheer frustration, most gardeners use chemical herbicides in the hope that if they can just whack this garden tyrant they can take back control of their garden. They dont realize is that the use of these chemicals does not guarantee penetration of the very powerful root system. It often just kills the leaves and flowers above the surface. The other problem with chemicals, of course, is that they can damage other organisms, including surrounding plants, wildlife, soil, and your health.

    Organic control of thistle is more effective than chemical control, although it requires some diligence and considerable elbow grease. Thistles can be controlled with homemade herbicides, uprooting, and prevention.

    Remove Excess Thatch By Scarifying

    Lawn thatch is a layer of dead and living organic material that lies between the grass and soil. It consists of old and new grass roots as well as other stuff.

    Some thatch is a good thing because it protects the crown of the grass plant. Too much, on the other hand, will prevent water, air and nutrients from penetrating the soil. When these nutrients cant penetrate the soil, the roots of the grass cant absorb them so are unable to produce food and grow.

    And where grass cant grow, weeds take over.

    Scarification is the process of removing excess thatch which opens the soil up so air, water and nutrients can penetrate it and the grass can consume them and grow strong.

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    How Do You Kill Thistles Without Chemicals

    How to Kill Thistles Organically, Without Chemicals

  • Step 1: Purchase an Organic Weed Killer. WEED BEATER FE.
  • Step 2: Use the Weed Out Lawn Tool for Thistles. Another method for dealing with Thistles is to just pull them out using our Weed Out Lawn Weeding Tool or Weed Out Pro Lawn Weeding Tool.
  • Step 3: Mow the Lawn.
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    Shade Is By Far The Best Way To Control Thistle

    Getting Rid of Thistles! Let’s Get To Spraying Noxious Weeds!

    When it pops up in your shade garden, it has little energy to pop up again if you nip it in the bud. When it appears early in the season near your tomatoes, dont fret too much. By mid-season, the tomatoes will shade it out and the thistle will give up, assuming youve been knocking it back while young.

    But give thistle a wide-open, sunny expense of clay soil, and all hell breaks loose, as it will fill up that space almost overnight. So the idea is to fill in every possible space in your garden with plants you love, to shade-out and out-compete the thistle seed and young shoots. If you have any open space, pop an annual or a ground cover in there, or use a nice vegetative mulch to fill it in and smother the thistle. If you dont allow thistle the opportunity to start, youll rarely see it.

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    The Best Way To Get Rid Of Thistles In Your Garden

    Related Articles

    Canada thistles thrive in almost any condition. Found throughout most of the U.S., they are perennial in U.S. Department of Agriculture plant hardiness zones 2 through 8. Their pretty spiky, purple blooms are about the only redeeming quality thistles possess. These tough weeds produce prolific seeds, have a long taproot or spreading rhizomes and can come back year after year. Plan for repeat ambushes to rid your garden of them.

    Monterey Herbicide Concentrate Weed Killer For Lawns

    Monterey Whacker Herbicide Concentrate, a full-strength effective weed killer is designed to kill about 140 varieties of weeds comprising Clover, Oxalis, poison oak, dandelions

    spurge, Rush, aster, and thistle. It is ready to use spray that is often called a 3-way herbicide for applying on ornamental lawns and turf, safe for Bluegrass, St. Augustine, Bahia, Fescue, Rye, Centipede, Common Bermuda, Zoysia, and bent.

    The product dimensions include 27 x 16 x 7 inches with a weight of 12.8 ounces. It is an easy-to-use product for year-round use.

    Mix the weed wacker with distilled water. When using, pour the mixture into a large spray bottle and spray on the weeds gradually. You may apply the wacker twice per year where the weeds actively grow. If you buy a 60 ounces bottle of weed wacker, it will cover 10, 000 Square feet of your yard.

    The powerful herbicide is effective for actively growing hard-to-control weeds. Follow the label instructions when using the product. Avoid physical contact and keep it away from kids and beloved pets. The product is gonna provide maximum satisfaction to the professional gardeners.


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    How To Get Rid Of Canadian Thistle

    Canadian thistle can be a gardeners worst nightmare. Its an annoying, ugly weed that can be hard to get rid of. Every gardener wants to know: How to get rid of Canadian thistle?

    Whether youre an avid gardener or enjoy planting in your free time, thistle plants are not something you want in your garden. Thistle plants spread aggressively, taking valuable space away from your precious plants. Fortunately, there are ways to get rid of this annoying weed so you can have your dream garden.

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    Use The Weed Out Lawn Tool For Thistles

    How To: Get Rid of Canada Thistle!

    Another method for dealing with Thistles is to just pull them out using our Weed Out Lawn Weeding Tool or Weed Out Pro Lawn Weeding Tool. They are both super easy to use and make pulling out weeds in your lawn fun! Two of the most obvious perks of this tool are that you never have to bend over to pull out the Thistle and you don’t have to touch it’s prickly leaves.

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