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Posted: 2024-02-02T10:45:21Z | Updated: 2024-02-02T19:11:42Z The Best Natural Weed Killers, So You Can Stop Worrying About Your Health | HuffPost Life

The Best Natural Weed Killers, So You Can Stop Worrying About Your Health

Roundup has been in the news for potentially causing cancer, so here's what natural landscapers recommend.
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On Monday, a jury in Pennsylvania unanimously ruled that Monsanto and its parent company, Bayer, were responsible for causing a mans cancer after he used their popular weed killer Roundup and its key ingredient, glyphosate for two decades on his property. (Monsanto disagrees with the verdict and plans to appeal.)

Theres long been some awareness surrounding the dangers of unregulated pesticide use (it was even outlined in classic books like Rachel Carsons Silent Spring ), but theres still very much a consumer demand for weed killers. They might even be in your shed or garage right now.  

Giles C. Thelen, co-owner of Montana-based Native Yards , a nursery dedicated to restoring natural landscapes, claimed that the majority of weed killers on your average store shelf contain glyphosates and 2,4-D , another herbicide thats been linked to health problems and can be toxic to wildlife .

And, according to Kelli Rohrig, owner of Montana-based Mountain Organic Landscaping & Irrigation , even fertilizers that appear to be marketed as natural are often owned by major chemical companies that are attempting to greenwash.

Jody Ash, owner of Colorados Wild Heritage Gardens  landscape company, takes an earth-centered approach to management of weeds and unwanted plants. 

Healthy plants and a full garden will always win the competition against weeds, Ash said. To do this, she encourages people to opt for landscapes containing plants that are not necessarily always native, but are prone to thrive in your specific climate. 

Her company utilizes online resources like PlantSelect.org to help determine which plants are suitable for Colorados environment and believes that similar platforms exist for many different regions. (For example, a quick Google search revealed the National Wildlife Federations Native Plant Finder  database.)

Also having plant diversity, generally areas with 10 or more different types, will usually keep out the weeds, Thelen said. 

According to Ash, its important to be conscious of the weed-management products you introduce to your green space, even if they are completely natural. This is because they can still disrupt balance and just exchange one problem for another, be it a new overgrowth of another weed species or an invasion of insects that were deterred by the plants that you just exterminated.

Were always going to have weeds, Ash said. And thats OK because everything is beneficial. 

But, Ash admits that there are instances where its necessary to control a particularly persistent plant. For situations like these, Ash and a few other natural landscapers have some techniques and effective natural products that are much safer alternatives to the weed killers that many of us have become so wary of. Check them out below.

HuffPost and its publishing partners may receive a share from purchases made via links on this page. Every item is independently selected by the HuffPost Shopping team. Prices and availability are subject to change. The experts consulted for this story do not necessarily endorse the products ahead unless otherwise noted.

1
A highly rated manual weeding tool
Josh Nelson, development director for Wild Ones Natural Landscapers , an initiative dedicated to preserving plant biodiversity, suggested the tried-and-true method of weed-pulling to manage unwanted growth.

"While this is the most labor-intensive method of weed control, it is one of the most effective methods as it removes the whole plant, including the roots," Nelson said. "It is important to do this before a weed goes to seed to prevent future weeds from sprouting. Hand-pulling of large weeds should be exercised with caution to prevent excessive soil disturbance and injury to the gardener."

We found this standing weeder, which was made specifically to effectively remove weeds without kneeling or causing strain on necks or backs. The simple design features a metal claw that grabs weeds from the root with just a tilt of the weeder.
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Etsy/SouthMountainNursery
Drought-tolerant ground cover seeds
According to Jody Ash, owner of Colorados Wild Heritage Gardens , planting ground cover is a phenomenal way to deter the growth of weeds. South Mountain Nursery , based in Phoenix, Arizona, has a wide selection of ground cover seeds to choose from, depending on which species will grow best in your region. Find options like this brightly colored heirloom thyme plant that is tolerant to drought and has reviews saying that it's quick to sprout.
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Etsy/OddTreePress
A natural cedar mulch for weed smothering
Both Ash and Nelson talk about smothering, a chemical-free technique that involves covering soil with materials such as mulch, newspapers or cardboard that can be effective for controlling weeds in larger areas.

Ash said that for her specific region, she prefers using cedar mulch, a very thick and dense woven mulch that, in addition to deterring weeds, also naturally repels pests.

We found this 100% natural and fresh cedar mulch which ships from a small business in Texas in increments of up to three and half gallons.
4
A drip irrigation system
"A lot of people will overhead water their plants with standard lawn head sprinklers," Ash said. "Drip systems on the other hand water at the base of that plant, only the amount of water that it needs, [so] you're going to have less weeds because you're not supporting the natural weed population with water."

Ash's company installs their own irrigation system which can be timed depending on how much a specific plant requires watering. Online, we found this six-sprinkler head kit by Rain Bird, which contains everything you need to easily convert your current sprinkler system into a drip one, without requiring any digging or existing irrigation knowledge. It eliminates wasteful overspray by sending water directly to plants rather than the sidewalk or other unwanted areas, thanks to an included pressure regulator.
5
A citrus-oil-based weed killer
If you are going to make the decision to venture into the world of natural weed-killing formulas, also known as biopesticides, Kelli Rohrig, owner of Montana-based Mountain Organic Landscaping & Irrigation , recommends this concentrate by Avenger, which uses a solution of essential citrus oils to eliminate weeds.

Ash cautioned that the use of essential oils can still pose a risk to wildlife, specifically birds, if ingested in large quantities. We asked Hardy Kern, director of government relations for the American Bird Conservancy , for his general guidance surrounding this risk.

According to Kern, essential oils are beneficial because they dissipate quickly after application and tend to degrade into nontoxic compounds. However, pesticides are pesticides, and tend to be indiscriminate within their intended class of target organisms.

"For birds specifically, it really depends on the individual oil. Some have little to no effect on birds seemingly, while others may be harmful," Kern said. He recommends the following:
  • First, use non-chemical methods for controlling weeds and other pests before moving to chemical applications.
  • Be as specific and sparing as possible and keep application areas small.
  • Follow all directions on the pesticide label, which may include timing, amount, and any personal protective equipment.
  • Avoid spraying near areas where you know birds will be, such as under feeders or near nest boxes or nest trees.
  • Avoid use in wet conditions, or early in the morning when birds tend to be most active.
6
A horticultural vinegar
For persistent weeds in areas like driveways, patios and sidewalks, Rohrig uses horticultural vinegar which is a corrosive solution that, according to the United States Department of Agriculture , has an 85% to 100% kill rate of weeds at all growth stages. Because this is a concentrated solution, it's important to follow the dilution directions listed on the label and only use in areas that are far away from water sources and never during a rain event, according to Rohrig.
7
A corn gluten fertilizer
Geordie Schuurman, owner of the Los Angeles-based sustainable landscape and design company Natural Earth , wrote to HuffPost about the methods of employing natural herbicides in conjunction with physical barriers like mulch as well as natural pre-emergents like corn gluten.

"Corn gluten is a natural product that prevents seeds from sprouting and can be purchased in granular or liquid form and can help ensure weeds won't sprout," Schuurman said.

We found this organic corn gluten fertilizer, which has a nutrient-rich composition to enhance soil and promote a healthy foundation for plants and grasses.

Before You Go

24 Gardening Products That Have Rave Reviews For A Reason
A hori hori garden knife(01 of24)
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Promising review: "I rarely leave a review unless I think something is truly an excellent product. This is the BEST hori hori I've ever owned! I've owned several during the last 20 years, and this one stands the test of time. I'm not always easy on some of my gardening tools; this knife has routinely been left outside in the dirt, rain or shine. It's still in excellent shape after seven long years. I decided to buy a second one for my greenhouse. It's comfortable in the hand, strong enough to cut roots with the serrated edge, and long enough to use for planting bulbs, prying up weeds, and digging holes for 6-inch pots. If you only buy one tool, this is it." nancy thompson (credit:amazon.com)
An indoor herb garden(02 of24)
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This set includes seed pods forGenovese Basil, curly parsley, dill, thyme, Thai basil, mint, and a 3-ounce bottle of plant nutrients. Available in two sizes and three colors.

Promising review: "Ive done traditional gardening and hydroponic gardening outside and hated both. The heat, the bugs, ugh! This little thing is awesome! My produce grows easily on my countertop and I dont have to do anything but watch them. Wish I would have found this before investing $500 in a lettuce grow system. Im going to be ordering a second one of these to grow tomatoes and cucumbers." A. Corbett
(credit:amazon.com)
A personalized garden tote(03 of24)
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This set includes a tote bag with two lines of text (you choose the thread color and font!) plus a digging trowel, planting trowel, and garden cultivator.

Promising review: "I absolutely love it. I highly recommend it for anyone who's looking for something a little different. The color and my name is awesome." Virginia
(credit:PersonalizationMall)
A soil moisture and pH meter(04 of24)
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Promising review: "Are you still wondering what the soil pH is in your garden? I discovered this handy little tool that gauges the soil pH. I love how easy it is to use. And easy to read. Theres no guessing the screen is completely clear and tells me what the pH level of my tomatoes are so I can up the acidity level if needed. Also, good for hydrangeas, which need to be pretty alkaline, which is lower. This stands out from all the other testers because this one is the most accurate to me. Aint nobody have time for soil to be off in my garden. Happy planting!!" AE (credit:amazon.com)
A raised garden bed(05 of24)
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Available in three sizes and three finishes.

Promising review:
"I bought two of these elevated wooden planters and like them so much I may add another. They arrived well-packaged, with all the necessary components and a clear assembly guide. The only tool I needed was a Phillips screwdriver. I treated the fir wood with a penetrating wood sealer for added protection, installed a drip irrigation system, and look forward to harvesting lots of basil, lettuces, herbs, etc. for years to come." Robert Borson
(credit:amazon.com)
A hose watering timer(06 of24)
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Promising review: "I use mine for several gardens, and in two years of owning it I havent had any breaks or leaks. I dont abuse mine but its still pretty awesome. Despite full sun and rain exposure I havent had a battery change or a fault. I would recommend it." Bjrn (credit:Amazon)
A set of 10 plant markers(07 of24)
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Promising review: "I absolutely love these garden stakes! Im new to gardening and each stake was marked 'sun' and 'moist' which lets me know where to plant it and to water frequently so my vegetables/fruit dont dry out. I needed a couple of stakes for fruits and vegetables that were not shown in the picture. I messaged the seller with a list of about 13 or 14 vegetables/fruits that Im planting in my garden and they provided me with a stake for each of those items. Customer service was beyond my expectations and the stakes arrived about five days sooner than I expected. The stakes measure anywhere from 2 inches in length to 5 inches in length (my stake for corn is 2 inches and my stake for watermelon is 5 inches). If I could give these 10 stars I would. I will be buying more!" Kathleen (credit:DrinkingModern)
An outdoor composting tumbler(08 of24)
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Promising review: "This is a good sturdy composter. We're heavily into reusing our used organic material. We were using a local composting company, but they got too picky about what material we could give them, so we struck out on our own and compost all our organic leftovers. We have a large garden and can now put this organic material back into the soil. The garden is just thriving!" S Bradbury (credit:Amazon)
An indoor/outdoor self-watering window box planter(09 of24)
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Available in two sizes and three colors.

Promising review:
"I bought the larger size and used it to plant basil, parsley, and thyme, and it works great for that. The self-watering concept makes it really easy for me, as Im a total newbie when it comes to plant care. Just add water in the hole and the soil drinks it right up!" Momma Elf
(credit:Target)
A potting soil that protects against over-watering(10 of24)
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Available in five sizes.

Promising review:
"My newest house plant/tree needed to be replanted in a bigger pot since it was getting a wee bit big for the pot so I was excited Amazon had this stocked! After opening I noticed how nice and moist the soil was inside the bag which was huge points because Ive noticed most times when purchasing online its usually bone dry. Will continue to order! Price point is perfect for the amount you get!" DesiDinks
(credit:Amazon)
A garden kneeler and stool(11 of24)
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Promising review: "This was a gift for my wife who started gardening this spring. She loves it! Says it's a real back saver. Serves as a bench for sitting or lower for kneeling while working at ground level. The gloves are also very useful for digging and loosening dirt around plants." Bruce (credit:amazon.com)
A pair of Fiskars pruning shears(12 of24)
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Promising review: "It comes good and sharp and ready to kick....um, cut wood, right out of the package. I would get a good sharpener for it, as it will become your go-to tool in the garden. Mine was used to cut ALL the small branches from a huge downed eucalyptus tree and was still sharp enough to delicately snip off some flowers from mom's bush without bruising the stem. Still, I have a sharpener on the side if/when I will eventually need it. As always, Fiskar is a sturdy quality tool. I look for it when getting garden or hobby/craft tools every time!" Chrystal Kay (credit:amazon.com)
A flexible and lightweight garden hose(13 of24)
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Available in seven sizes.

Promising review:
"I had to replace my heavy duty hoses (that came with the home we bought) and get far lighter hoses. Dragging and maneuvering a hose around flowers etc. without mashing or breaking them, is a trick. I couldn't take it anymore. I love these hoses. They crank up into the hose storage easily and though light, do not hamper water flow. I love them." artgirl
(credit:amazon.com)
A stand-up weed puller(14 of24)
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Promising review: "I don't ever write reviews, but I felt compelled to give credit where credit is due. I am no gardener. Just a simple working mom, with little time or knowledge about how to upkeep my landscaping. This product made it a no brainer! We get TONS of little weeds all over our (already desert landscape) front yard. Getting down on my hands and knees every week or so was just getting to be too much. Saw this product and decided to give it a try. You don't know what you're missing until you try it. Worth every penny super easy to use, REALLY WORKS! Fast and easy. Would totally recommend this product to anyone interested in fast and easy weeding." Brett K (credit:Amazon)
A seeding template(15 of24)
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Promising review: "I almost didn't purchase this item because it seemed pricey as a measuring tool. However, I'm so glad I gave it a shot. This tool has saved me countless headaches trying to plant my spring garden. Not only is it study, but the color coding system is super easy and foolproof. My beans are growing in perfectly spaced straight rows. My broccoli has just the right amount of elbow room. It thrills me to look out at my garden plants and visually see the organization. The attached tools are handy, especially the poking tool with depth measurement. Again, so easy. This would make a perfect gift for the gardener in your life! I know I will be gifting it since I've enjoyed mine so much." Dana Ellis (credit:amazon.com)
A 10-pack of seed-starting trays with ventilated covers(16 of24)
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Available in three colors.

Promising review:
"Everyone knows how it feel to buy a product that is exactly what it says it is. Such is the case with this seed starter kit. Well made and sturdy, they will last a few seasons at least. Easy to manage smaller size compared to the larger, longer sized trays I've used in past seasons. I'm glad I found them and the vent on the top is useful." Mrs. Mukhan
(credit:amazon.com)
A pack of 45 garden ties(17 of24)
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Available in five sizes.

Promising review:
"These straps work pretty well and can be easily expanded since its using Velcro to stick together. I use it for my zucchini plant and fruit trees. It holds well and seems to be easier on the plant stems since its much wider than the wired alternatives. I recommend giving extra buffer when cutting. This way you can expand as the plants grow. These are much easier to adjust than my old wire setup." DivideByZero
(credit:amazon.com)
A 2-pack of solar-powered garden lights(18 of24)
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Promising review: "I am totally obsessed with these lights. I bought my first set and had them for about a week and couldnt get over how lovely they were. So I have now purchased two more sets. They have a lovely orange cloud, and they light up my flowers and azalea bushes beautifully. They have a lovely orange glow like little fireflies." A Lombardo (credit:amazon.com)
A galvanized garden bed(19 of24)
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Available in three sizes and five colors.

Promising review:
"These came in exactly as ordered! They were a little tedious to put together, but we got it done and were pleased with their size (4x8) and the way they look. Our summer garden is under way!" CB2325
(credit:amazon.com)
A root growth hormone(20 of24)
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Promising review: "This stuff is amazing. Allowed me to propagate all my plants that were on the brink of death. Im excited to grow and propagate tons of stuff now! Works so fast, these started rooting in just a week under my grow lights." Christina (credit:Amazon)
A stackable planter(21 of24)
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Available in four colors.

Promising review:
"I absolutely love this! I have used it to plant strawberries, lemon balm, English ivy, creeping Jenny, cauliflower on top, lavender, oregano, and parsley. It hooks together easily, and it can be taken apart if you have to move it. It normally stays outside, however we are having a winter freeze right now so I had to bring it in. I am constantly sending the link to my friends and family because they love it also." Cynthia Stoker
(credit:amazon.com)
A five-pack of potato growing bags(22 of24)
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Promising review: "We bought the bags to try growing vegetables, herbs and fruit (tomatoes). We travel full time so the ease of transportation is terrific. Using new potting soil and so far all the plants have grown and produced well. The bags are holding up and we plan on using them next year." Paula (credit:amazon.com)
An 10-variety herb garden seed set(23 of24)
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Promising review: "I love the fact that I could order seeds I needed instead of buying large packages from retail stores and throwing away unused seeds. One can only plant so many herbs. There are plenty of seeds for a season with this order. Great job!" jn (credit:Amazon)
A set of four stackable mini garden trellises(24 of24)
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Promising review: "Sturdy but lightweight trellis! Extension works great. Narrow enough base for small pots but it widens to provide a good area for climbing. Wouldnt be a good choice for mature large plants not what this is intended for. I think my young plants will do quite well with these." kelly (credit:amazon.com)

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