Weed Killer

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Kill Weeds Safely

Sierra Natural Science WeedRot™ gets rid of weeds with a patent-pending formula that’s safe for kids and pets when used as directed.

✔ Glyphosate Free
✔ Works in as little as 3 hours
✔ Made in the USA

All SNS weed control products are made in the United States
All SNS herbicides are glyphosate free
Buy SNS WeedRot weed killer spray starting at $7.99
before and after weed killer by SNS

Kill Weeds Safely

WeedRot™ kills weeds with a patent-pending formula that’s safe for kids and pets when used as directed.

✔ Glyphosate Free
✔ Works in as little as 3 hours
✔ Made in the USA

SNS WeedRot weed killer is Glyphosate free
Happy family because they use SNS safe weed killers

You Can Buy WeedRot™  In 3 Easy-to-Use Formulas

Purchase WeedRot natural weed control ready to use pouch, square with details label

WeedRot Mix & Use

Get rid of pesky weeds with our powerful, effective & safe weed control with our money-saving ready to mix pouch. Safe around kids & pets when used as directed


Discount – Only $7.99

Most Affordable

WeedRot ready to use spray bottle weed killer spray, white with details label

WeedRot Ready to Use

Eliminate weeds with our powerful, effective & safe weed killer with our convenient ready-to-use spray bottle. Safe around kids & pets when used as directed.


Buy Online – From $14.99

Most Convenient

Quantity discount WeedRot concentrate weed killer, one gallon bottle, white with details label

WeedRot Concentrate

Control weeds with our powerful, effective & safe weed killer with our concentrated formula. Mix to desired potency. Safe around kids & pets when used as directed.


Best Deal – From $67.50

Best Value

You Shouldn’t Have To Choose

Between a Beautiful Garden and a Safe Environment for Your Family

child and mother in garden using SNS WeedRot killing weeds - buy online now

Our journey started over 20 years ago. We wanted an effective and natural weed killer that worked fast but didn’t harm the environment. But that kind of product didn’t seem to exist.


Introducing Sierra Natural Science WeedRot™

Now you can control the weeds in your garden, lawn, farm or school with confidence. Our glyphosate-free formula is safe around your children, dogs and cats.

WeedRot™ is so safe, it’s exempt from EPA regulations. Buy Today!

in stock no glyphosate symbol – SNS WeedRot does not have cancer causing chemicals

How to Use WeedRot™


after you buy directions for how to use WeedRot weed killing solution, step 1, pick a sunny day

Pick a Sunny Day


how to use WeedRot weed killing solution, step 2, spray unwanted vegetation - SNS online store

Spray weeds with WeedRot™


Buy and learn how WeedRot weed killing solution works in 3 hours

See Results in as little as 3 hours

Cloudy days are fine too. The sunnier it is outside, the faster you’ll see results

WeedRot™ is Effective on


how to use WeedRot weed killing solution, step 3, wait 3 hours for dead weeds


WeedRot kills Crabgrass weeds – image of Crabgrass growing


WeedRot kills Starthistle weeds – image of Starthistle growing


WeedRot kills Starthistle weeds – image of Starthistle growing

And over 250 different kinds of weeds!

WeedRot™ in Action

before and after images of WeedRot’s effectiveness, picture 2
before and after weed killer by SNS

Watch WeedRot™ Kill Crabgrass

In only three hours (video is about 1 minute)

Trusted by the Gilroy School District

To protect their students and staff

letter from the Gilroy School District thanking Sierra Natural Science for making a great weed removal product

Buy WeedRot™ and Get Rid of Pesky Weeds With Piece of Mind

Purchase WeedRot natural weed control ready to use pouch, square with details label

WeedRot Mix & Use – Click and Save

Get rid of pesky weeds with our powerful, effective & safe weed control with our money-saving ready to mix pouch. Safe around kids & pets when used as directed


Buy Online for $7.99

Most Affordable

WeedRot ready to use spray bottle weed killer spray, white with details label

WeedRot Ready to Use – Buy Today

Eliminate weeds with our powerful, effective & safe weed killer with our convenient ready-to-use spray bottle. Safe around kids & pets when used as directed.


Sale! – From $14.99

Most Convenient

Quantity discount WeedRot concentrate weed killer, one gallon bottle, white with details label

WeedRot Concentrate – Saves Money

Control weeds with our powerful, effective & safe weed killer with our concentrated formula. Mix to desired potency. Safe around kids & pets when used as directed.


In Stock – From $67.50

Best Value

Helpful Articles About Weed Killer

a Caucasian person’s hands pulling weeds

When to Apply Weed Killer

When it appears there are more unwanted weeds on the lawn than the grass itself and you can’t remove them manually, weed killers come to the rescue

However, when deciding to use a broadleaf weed killer for grass, vegetables, flowers, or any other plants, know 

basket of harvested vegetables including green onions, cherry tomatoes, romaine lettuce, kale, peppers, cauliflower and red cabbage

Why Are Thoughtful Weed Killers Important for Our Planet’s Future?

Weed killing chemicals were previously praised for overcoming agricultural difficulties and shortages. Pesticides were known as the technological answer to combating weeds, insects and other pests that

a person using a weed removal tool to pull weeds from the ground

How Long Does It Take Weed Killer to Work?

Existing weeds appear almost everywhere–mostly in large quantities that are not easy to eradicate. They take away space, sun, and nutrients that are essential for the care and survival of cultivated plants. They cause them to weaken and linger, or even die. This unwanted vegetation must be promptly dealt with to avoid negatively impacting nearby plants with this weed growth.

Weedrot™ is not made with Glyphosate*

Glyphosate is linked to cancer

a bottle showing how SNS WeedRot weed killer line does not use cancer-causing Glyphosate

With Weedrot™ You Can Have a Beautiful Garden

And create a brighter future

the earth happy and healthy because people are using natural weed killer products
two WeedRot packages, one white spray bottle with weed killer ingredients label and one gallon container with product label

Frequently Asked Questions

Here are some of the common questions we’re asked.

There are no stupid questions though – only information you don’t have yet – so ask whatever is on your mind.

It’s it true that most weed trees will die if one cuts down below the crown as long as they’re young enough to get pruners around them?

Not necessarily. In many cases, extra growth will generate below the chopped area. It’s best to dig or pull them out to remove all roots.

Can weeds be killed by highly acidic vinegar and orange gel?

Vinegar and orange gel can be somewhat effective in killing weeds due to the acid it contains. Be careful not to use it on desirable plants. This is not the most effective weed control formula. Its also very hard to control weeds in grass without killing the grass. Its one of the most popular weed killer alternatives.

What’s the best spray for getting rid of weeds like goat head sticker grass from a play area?

WeedRot™ Natural Systemic Weed Control is pretty all-inclusive when it comes to killing every part of a weed. If you’re looking for something less expensive, boiled water might work. But be aware that both of these will kill any plant type they come in contact with. Avoid any weed killer with high levels of Glyphosate. This ingredient is linked with cancer and is a known human carcinogenFor maximum safety, stay away from all glyphosate-based products. They’re not worth the meaningful risks they present.

What are the benefits of knowing weed species growing in the planting bed?

Knowing the type of weed present in one’s garden is crucial to determining the best way to manage it. Some invasive plants are very aggressive and can be hard to control when they mature. Numerous weed species show a cultural problem on the landscape. For instance, the problem of overwatering is indicated by the presence of Nutsedge.

.weed killer crops

A Guide to the Best Overall Natural Weed Killing Products of 2021

It might be challenging to know what’s what to become weed free with weed and grass killer products. But Sierra Natural Science has farmers covered with tenacity and one of the best options available. Here’s their list of the best weed killers. They are highly recommended for an array of applications:

  • WeedRot™ Natural Systemic Weed Control Ready to Use – SNS Weed Rot™ is a natural alternative that springs up as the definite winner. It has the ability to be non-selective, and removes the waxy layer commonly known as the “cuticle” that the plant produces naturally. This cuticle is a hydroxy fatty acid, which in some plants causes a bluish coloration. WeedRot penetrates deep into the root system to stop the weed from absorbing the amino acids and nutrients necessary for growth. This effectively eliminates their ability to grow.
  • WeedRot™ Natural Systemic Weed Control Concentrate – SNS WeedRot™ is an excellent product for killing weeds in a natural progressive manner. It’s the same product as above, but highly concentrated to save on shipping prices and reduce overall application costs. Just follow the 10/1 dilution instructions for weed non-selective killers. This is a completely natural option.

Are growers and farmers having trouble finding the best weed killing product? Sierra Natural Science is familiar with the products sold by the competition. We’re confident that by purchasing SNS products, you’ll get the best price on the best possible natural weed killing product available on the market. Visit our online gardening store to find a weed preventer or killer and shop today.

weed killer garden grass grass killer outdoor corn mulch lawn concentrate organic product roots

Killing Weeds with Brains and Brawn at Great Prices

If weed control was so simple, Sierra Natural Science wouldn’t be in business in the first place. Taking care of things with a garden herbicide isn’t always as simple as buying the it in the gardening aisle and spraying from a weed control product sprayer. It requires taking into account some considerations for a full multi-faceted approach to achieve the best and most sustainable results.

Here’re some technical weed killing strategies one needs to keep in mind:

  • Understanding the weed – knowing when to use a concentrate contact weed killer
  • Spraying versus pulling – such as organic weed killing product for lawns
  • Nipping the problem in the bud (preferably the root)
  • Timing – you don’t want to concentrate product too much
  • Tools – such as to spread granular type

Understanding the Weed

To find the best technique to kill a specific weed in your gardenlawn, flower beds or grassy yard, you have to figure out how it grows. When it develops and the kind of weed also matters. Annual weeds that come back regularly on a yearly basis are called “enduring”. These are important considerations in choosing a lawn weeds and grass killer. Considering safe weed killers does not mean that you sacrifice effectiveness. But sometimes you need something strong, like industrial weed killer.

Spraying versus Pulling

Pulling weeds by hand is practical when one is managing a little territory or only a couple of weeds in driveways. Farmers should ensure they pull out the roots to prevent weeds from growing again. But for large farms, this method is time consuming, labor intensive and costly. That is when weed killing spray comes in handy. Both for home users, and large sprayers on farms.

Nipping the Problem in the Bud (preferably the root)

Farmers and growers should not let weeds supplant themselves. One should use a pre-emergent herbicide such as ” WeedRot Ready to Use Product “, which is a non toxic weed killer designed to keep weed seeds from growing on planting beds and yards. This is an eco friendly product we make ourselves that has no toxic ingredients or harsh chemicals and takes care of unwanted plants. We feel it is the best organic weed killer in the world. It also happens to be a pet friendly product and a kid friendly weed killer as well. In fact, we feel it is the best natural weed killer in the world. Try it yourself on your vegetable garden, flower beds or grassy yard and find out how it kills tough weeds.


You should attack tough weeds and hungry weeds as early as possible in the growing season, whether it’s in driveways or lawns. Do this when development is youthful and mild. It is critical to ensure that yearly weeds don’t bloom. The old adage “an ounce of prevention is worth a pound of cure” applies, especially with an environmentally friendly systemic weed killer for common tough weeds and crabgrass.

They don’t have the toxic chemicals that most of the big names do. The sooner a weed problem is addressed in the lawn or garden, the easier it is to control with a weed eater like ours. The sooner that weed killers are applied to the garden area, the less grassy weed and grass killer product is needed. You can learn more about when to apply weed killer here.

Tools for Garden & Flower Beds

Specialized weeding devices make it simpler to kill hardier weeds. Many tools are easily available at local gardening shops that will help control weed problems with any garden or lawn. If you want a permanent weed killer, then fly to the moon. Wherever anything else grows, troublesome garden weeds will grow too.

Get the Best Tips for The Application of Weed Killing Products

Here is a 21-step checklist for using selective weed killers:

    1. Create a splash zone (because even the best weed killers can splash). You want to create a space that gives you enough room for a gallon of water to be mixed.
    2. Put on a pair of gardening gloves
    3. Cut off both ends of the can or the base of a 2-litre plastic jug.
    4. Slip the holder over the stubborn weed, embed the sprayer‘s spout through the top opening and use.
    5. Use an open-finished cardboard box to focus on a bigger weed area such as a lawn weed area.
    6. If you’re using a broadleaf weed killer, be sure to use only post-emergent herbicides or a professional herbicide for lawns. 
    7. If you’re using weed killing products around pets, make sure to use one of our products that are designed to be a dog-friendly weed killer.
    8. To kill one emergent weed developing in adjacent plants without spraying them:
    9. Cut a little opening in a big piece of plastic.
    10. Lay the plastic over the weed, getting the leaves through the gap.
    11. Apply active ingredients.
    12. Wearing gloves, expel the plastic after the liquid has dried.
    13. Handle the plastic cautiously to abstain from spraying products on wanted plants.
    14. Get pinpoint precision by using a paintbrush or glove to apply products to explicit leaves. If utilizing a cotton glove, wear a plastic glove underneath. This keeps the liquid from getting into contact with the skin.
    15. To splash weedy vines without hurting garden plants, follow a bit by bit selective assault:
    16. Cut the plant at soil level and add a short stake close to the base of the vine.
    17. When the vine resprouts, it’ll begin to climb the vine.
    18. Before development surpasses stake stature, slip an open-finished plastic sack over the emergent weed.
    19. Expel the stake, and shower the weed inside the plastic pack with the product.
    20. Try not to remove the sack until the wetness has dried on foliage. This is always best, as the spray needs to dry.
    21. If one inadvertently sprinkles inorganic herbicide on the useful plant species, leaves should be washed quickly with water, especially if using an industrial strength weedkiller. If using foundational selective herbicide, prune the influenced plant parts immediately and wash the remaining emergent leaves with water.

Selective Weed killer products should be sprayed in a calm environment. If the weather is windy, apply it directly on the emergent weed.

Take care when killing weeds in a garden with dormant bulbs. The herbicide can seep into the neck of the bulb, causing a reaction in the bulb.

  • Most companies recommend avoiding spraying weed-killing product on sunny days, which may worsen the symptoms of spray drift damage. Buy the Sierra Natural Science weed killers work best in full sunlight.
  • Don’t walk on areas that have just been sprayed as it increases the risk of carrying the herbicide into places like lawns. You want to make sure you understand how long it takes weed killer to work so you can avoid contact during certain times.
  • Have a dedicated sprayer for the herbicide to prevent accidental application of product to desirable plants or cast run off. This is especially important when not using an animal friendly spray as pets might drink the run off.
  • To isolate weeds on the edges of planting beds, use a u-shaped anchor pin to anchor the weed to the ground. Only spray the broadleaf herbicide after clumping and pinning the foliage. This is the most effective solution and helps prevent application to desirable plants.

tomato weed killer plants beds corn mulch concentrate grow non toxic

Final Words: Get Ready for Great Weed Control with Our Concentrate Products with Great Pricing

Weeds are one of the biggest nightmares of any gardener, farmer or landscaper. Whether you’re an established gardener and lawn expert or just a newbie trying to nurture their green thumb on the turf or garden, Sierra Natural Science provides concentrated weed killer and ready to use weed killer that has already been diluted. SNS also offers many natural herbicides that vastly outperform homemade remedies in the garden and lawn. Our product kills broadleaf weeds and many other types of weeds within 3 hours.

We feel that the SNS Weedrot product line is an environmentally friendly powerful weed killer that is hands down the best consumer, commercial weed killer and systemic weed control product on the market with the safest ingredients. Whatever your particular needs are, SNS products are an excellent choice for effective products that are far less harmful to the environment, humans and pets than chemical weed killers and commercial herbicides. SNS products are as safe as any homemade weed killer product while also being even more effective than homemade weed killer products. WeedRot is the best non toxic product and alternative weed killer on the market and it’s designed to deliver the most effective application of natural weed killing spray possible in your yard or flower beds.

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Some of the information on this Web page has been provided by external sources. The provision of Third Party Content is for general informational purposes only and does not constitute as a recommendation for alternatives. The Third Party Content provided on this web page is obtained from sources believed to be reliable. This information is not approved by the office of environmental health hazard assessment. Please do research to determine your own health risk assessment. The human health risk of all products must be carefully evaluated based on your particular needs. Sierra Natural Science is not responsible for the accuracy or reliability of the information supplied by the external sources, and no guarantees are made by Sierra Natural Science or the providers of the Third Party Content as to its accuracy, completeness, timeliness.

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