ORGANIC WEED CONTROL FOR LAWNS
A Natural Weed Killer That Actually Works
Made From Edible Ingredients
One Earth Weed Control and Organic Fertilizer is an outstanding all-natural solution for weed control. Composed entirely of natural ingredients—either derived from plants, like yucca extract, or naturally sourced minerals, such as iron—this weed killer is both effective and non-toxic to people, pets and the environment. It delivers fast results and is particularly renowned for its power against dandelions, outperforming many chemical alternatives without any toxic substances.
Works Fast!
Within just 24-72 hours after application, you’ll witness the transformation as weeds turn black and die off. Depending on the weed types in your lawn, you can expect a remarkable 60-90% control rate with each application. One Earth Weed Control rapidly tackles most broadleaf weeds, enhances the health of your lawn, and is completely free of harmful chemicals. Check out the video below to see impressive before-and-after examples!
Watch the Incredible Before and After Results with Dandelions
How Does This Organic Weed Killer Work?
Nutrient Overdose of the Weed
One Earth Weed Control eliminates dandelions and other weeds in your lawn by a unique control method – nutrient overdose of the weed.
Oxidative Damage
One Earth Weed Control is absorbed more effectively by broadleaf weeds than by grass species, making it selectively toxic to unwanted plants while sparing most grasses. Once absorbed, the product causes oxidative damage within the weed’s cells, disrupting their photosynthesis and metabolic processes, which ultimately leads to cell death. As a result, the leaves of the weeds dry out and turn brown, effectively killing the plant above ground.
Fast Results (24-48 Hours)
After this natural weed killer has been applied and watered into the soil, the dandelions usually turn black and die within 24 to 72 hours.
Before Treatment
After Treatment
Before and After Photos
Before Treatment
1 Hour After Treatment
6 Hours After Treatment
24 Hours After
30 Hours After
48 Hours After
The Best Natural Weed Killer for Lawns
Before Treatment
This is a dandelion before a treatment of One Earth.
After Treatment
This is a dandelion after a treatment of One Earth. You do not have to pull this up, it will decompose on it’s own.
Child and Pet Friendly Lawn Care That Really Works!
Nutrient Overdose
One Earth Weed Killer is an innovative formula that targets broadleaf weeds by delivering a nutrient overload, causing the weeds’ cells to turn black and die.
Builds the Soil
In addition to weed control, the organic fertilizer in One Earth Weed Control enriches your lawn and enhances beneficial microbial activity in the soil, promoting a lush and vibrant landscape.
Pet Friendly Weed Control
What is One Earth Weed Control Made From?
Real Ingredients
One Earth Weed Control is not only effective but also made from ingredients you can pronounce: like molasses, yucca and iron. This weed control is considered edible and is non-toxic to pets, including dogs and cats, as well as to children and the environment. Choose One Earth Weed Control for a powerful and environmentally friendly solution to dandelions in your yard.
Strong Weed Control Rates
When your lawn is healthy and the weeds are actively growing, you can expect impressive weed control rates ranging from 60% to 90% with each application. Keep in mind that if the lawn is stressed from drought or if the weeds have matured, the effectiveness may be reduced. Experience a healthier lawn today with One Earth Weed Killer!
Amazing Results
Weed Control Rates
For Different Types of Weeds
Bindweed
Good Control
Bindweed: (Good Control 60-80%, but it will typically grow back quickly) Bindweed is an indicator of drought stress or improper lawn watering.
We offer a special bindweed control which works very well with only one application.
Black Medic
Good Control
Black Medic: (Good Control 60-80%) Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later. This weed blooms from April to October. This weed is commonly found in lawns with low fertility.
Broad Plantain
Okay Control
Broadleaf Plantain: (Okay Control 50-70%+) This is an indicator of soil compaction. Soil compaction can be caused by too much water and plantain can be cured via aeration.
Note: We get about 80-90% control if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Bull Thistle
Okay Control
Bull Thistle: (Okay Control 50-70%+) Thistle is found in both lawn, non-turf areas, as well as native areas. A healthy, dense lawn is the best defense against thistle. By mowing tall, you will discourage the seeds and roots from growing.
Canada Thistle
Okay Control
Canada Thistle: (Okay Control 50-70%+) Best control rates are achieved on smaller weeds. You will mostly seed only the young stage of this weed in a lawn. This weed is also commonly found in pasture areas where it can grow up to 4 feet tall.
Chickweed
Poor Control
Common Chickweed: (Poor Control 40-60%) Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Coarse Fescue
No Control – Special Treatment Required
Coarse Tall Fescue: (No Control 0%) Since this is a grass, One Earth will not control this, because it is so closely related to the turf grasses.
We offer a special control for coarse fescue grasses which requires 3 back-to-back-to-back applications.
Crabgrass
No Control – Special Treatment Required
Crabgrass: (No Control 0%) One Earth does not control crabgrass. This weed is natural erosion control, so it will move into bare areas and along the edges of the grass.
We offer a special crabgrass control which works very well with only one application.
Dandelion
Amazing Results
Dandelion: (Incredible Control 90%+, especially in the spring) Dandelions prefer full sun and moist soils with good drainage, but will grow in just about every light condition. Once established, this plant is so resilient that it can grow in poor soil conditions where other plants especially grass will not grow.
False Dandelion
Great Control
False Dandelion: (Excellent Control 80-90%+) This weed is also known as Cat’s Ear. This weed is most commonly seen in the fall. An easy way to tell this from a dandelion is by the leaves. The false dandelion has fine hairs on the leaves.
Lambs Ears
Poor Control
Lambs Ears: (Poor Control 25-50%) This weed blooms from spring to early summer. This is usually only considered a weed in the lawn, it’s often found in landscaping as an ornamental plant.
Mallow
Okay Control
Mallow: (Okay Control 50-70%) The best control occurs on young mallow plants. Mature plants achieve poor weed control rates (25-40%).
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Plantain
Okay Control
Narrow-Leaved Plantain: (Okay Control 50-70%+) This is an indicator of soil compaction. Soil compaction can be caused by too much water and plantain can be cured via aeration.
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Oxalis
Okay Control
Oxalis: (Okay Control 40-80%) This weed is an indicator of poor soil fertility. Low soil fertility can be caused by daily or too frequent lawn watering.
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
P. Speedwell
Good Control
Persian Speedwell: (Good Control 60-80%) This is both a summer and winter annual depending on the location. It’s most commonly found in disturbed soils. This weed flowers from February through May. Because this weed comes up from a seed, you will see great control with Synergy when used regularly.
Prickly Lettuce
Excellent Control
Prickly Lettuce: (Excellent Control 80-90%+) Also known as Wild Lettuce. This weed is often seen in landscaped areas, fields, and gardens. It can grow up to 6 feet tall if left uncontrolled. Lettuce will bloom from April through October.
P. Spruge
Poor Control
Prostrate Spurge: (Poor Control 40-80%) Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
This weed is best controlled by proper lawn watering, it’s most often found in drought-stressed areas of the lawn.
Purslane
Poor Control
Purslane: (Poor Control 40-80%) This is an indication of drought stress and can be an indication of improper lawn watering or poor sprinkler coverage.
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Red Pigweed
Good Control
Redroot Pigweed: (Good Control 60-80%) This is an annual weed, that is usually not seen in lawns that are regularly mowed. It is most commonly found in areas where the soil has been disturbed, like compost or a garden bed. This weed has a deep taproot so catching this weed early is key.
Speedwell
Good Control
Slender Speedwell: (Good Control 60-80%) This weed is most commonly found in very moist soils. It can tolerate short mowing heights and re-root itself from cut off stems. Slender Speedwell will flower from April through June.
Sorrel
Poor Control
Volcanic Sorrel: (Poor Control 40-80%) Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
White Clover
Good Control but Requires Multiple Apps
White Clover: (Poor Control with 1 Application 40-80%)
This weed is an indicator of poor soil fertility. Low soil fertility can be caused by daily or too frequent lawn watering.
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
Wild Strawberry
Good Control but Requires Multiple Apps
Wild Strawberry: (Poor Control Rates with 1 Application 40-80%)
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
We Have a Wonderful Video About Controlling Wild Strawberry Lawns.
Wild Violet
Good Control but Requires Multiple Apps
Wild Violet: (Poor Control with 1 Application 40-80%)
This weed is an indicator of over-watering, too much shade, and compacted soils.
Higher weed control can be achieved (80-90% control) if One Earth Weed Control is applied and then a second application is performed 7-10 days later.
We Have a Wonderful Video About Controlling Wild Violet in Lawns.
How Much Does One Earth Weed Control Cost?
Schedule this incredible Natural Weed Killer call today!
(303) 499-2000 Boulder or (970) 225-9425 Fort Collins
How to Get the Best Results from Your
One Earth Weed Control Application?
Water Before and After Treatment
Moisture Truly Helps
Watering the lawn before and after the One Earth Weed Control application will provide the best results.
Young Actively Growing Weeds
One Earth Weed Control is highly effective at eliminating dandelions and larger leaf weed. The best control rates occur when the weeds are young, actively growing, and healthy (not drought stressed). However, One Earth is less effective against smaller-leafed weeds such as oxalis and clover.
Chemical Free
This product is ideal for those who desire a beautiful lawn while avoiding chemical weed control methods. One Earth Weed Control excels at killing dandelions and making the lawn healthy and lush. It is also considered non-toxic to people, pets, bees, and children, making it a great choice for families. This is why Organo-Lawn utilizes it to provide exceptional, child- and pet-friendly lawn care services.
One Earth Weed Control is made from a proprietary blend of food-grade ingredients and a unique form of iron. All ingredients are edible, although we wouldn’t eat the weed killer itself.
When is the Ideal Time to Have One Earth Applied?
Ideal Time to Have Weed Killer Applied (for Control on Dandelions)
Spring: April 23rd-May 31st
Summer – June 15- July 4th
Late Summer/Fall: August 1st – Sept 15th
Weed Killer Application Season:
April 23rd – Sept 15th
One Earth, an all natural post-emergent weed control, is registered by the Colorado Department of Agriculture, and is recommended for weed control for lawns in the Boulder and Fort Collins area.
Lawn Spraying
Warning About Drought Stressed Lawns
One Earth Weed Control can, in rare cases, cause temporary browning in drought-stressed lawns or in grass with shallow root systems. This browning typically occurs when lawns do not follow the 1-2-3-2-1 lawn watering technique or in areas with inadequate sprinkler coverage.
It Will Recover
The damage may last between 1 to 6 weeks, depending on the overall health of the lawn; however, the grass will recover if the affected area is thoroughly watered. This temporary damage is mainly seen in lawns with shallow root systems, which can result from improper watering techniques or poor irrigation coverage.
Water Helps
If damage occurs, please hand-water the affected areas deeply for three consecutive days. We also recommend conducting a sprinkler audit to prevent future issues.
Drought Stressed Lawn Damage
Organic Lawn Care Services
The 3 Keys to Achieving Amazing Results
Let’s Go Organic!
To schedule this incredible Natural Weed Killer call today to talk to one of our professional lawn care technicians.
(303) 499-2000 Boulder or (970) 225-9425 Fort Collins
One Earth Weed Control for Lawns FAQs
When is the Best Time of Year to Apply a Weed Killer in a Lawn?
Young and Actively Growing Weeds
Weeds are easiest to control when they are young, actively growing, and have plenty of moisture. For most weeds, including dandelions, this is typically in the spring, especially from late April to May. The ideal time to apply a weed killer is shortly after a rainstorm or when temperatures are cool. During these times, the stomata (pores on the leaves) of the plants are fully open, making them more receptive to absorbing the weed killer.
Water Before and After for Best Results
One Earth Weed Control achieves the best results on dandelions when applied after a rainstorm or after the lawn is thoroughly watered. Our full-season lawn care programs are designed to apply weed killers during the periods when weeds are most susceptible to control. Organic weed control applications are usually scheduled about every 6-8 weeks. For fully mature weeds, multiple applications may be necessary.
Side by Side Comparison
Is One Earth Weed Killer Safe for Kids and Pets?
Non-Toxic
One Earth is a food-grade product that is generally considered non-toxic to both people and pets, except in cases where allergies may be a concern. The ingredients in One Earth Weed Control are commonly found in various foods and are deemed edible.
Dept of Ag Rules
However, it is important to note that the Colorado Department of Agriculture does not allow any weed control products to be labeled as completely safe. Therefore, while we cannot definitively claim that One Earth is safe for children and pets, we can confirm that it is made from edible, non-toxic ingredients.
Pet Friendly
Additional FAQs
All of the ingredients in our One Earth Weed Control are considered edible and there is no indication that any of the ingredients would be toxic to bees.
One Earth is rain proof with as soon as 30 minutes after the application has been completed.
The application is rainproof 30 minutes after it has been applied. If it rains, please wait 4 days to determine if the weed control is effective.
The weeds will turn black and die. If the application does not achieve at least a 60% control rate within 4 days, please contact our office between 4 to 10 days after the application, and we will reapply the treatment free of charge.
If the weather is dry, be sure to water the lawn after the application is completed. Watering 4 to 24 hours after the application has been completed will help improve the effectiveness of the weed control.
Please note that while dandelion flowers will not turn black, the plant tissue will. To remove the dandelion flowers, you can mow the lawn, and they should not return.
One Earth is a proprietary product, but it is comprised of ingredients like molasses, yucca, and iron, plus a few others that are similar. They are all either derived from plants (i.e. yucca) or mined from the earth (iron).
One Earth consists of ingredients that are sticky when wet. To avoid sticky feet and paws, we recommend staying off the lawn until the product has dried. Depending on the weather, this drying time may take just a few minutes or on a cooler day it could take up to 24 hours.
If you prefer to be extra cautious, we suggest waiting until the lawn has been watered before walking on it.
To achieve the best results we recommend watering the lawn the day or night before the application and water the lawn again 6-24 hours after the application water.
It is legally required to display a pesticide application flag, even if a product is natural and non-toxic. In Colorado, any product that claims to control weeds is classified as a pesticide and thus requires a yellow pesticide application flag.
One Earth is a liquid that is applied using a commercial spray tank.
One Earth typically achieves weed control results between 60% and 80%, depending on the type of weeds and their maturity. We have found that it works exceptionally well on dandelions, reaching a weed control rate of 90% or higher under ideal conditions.
No, we currently do not sell any of our liquid products.
The special form of iron which is the active ingredient in the product is expensive. However, this is the best 100% organic post emergent weed control available for turf areas.
One Earth Weed Control can, in rare cases, cause temporary browning in drought-stressed lawns or in grass with shallow root systems. This browning typically occurs when lawns do not follow the 1-2-3-2-1 lawn watering technique or in areas with inadequate sprinkler coverage.
The damage may last between 1 to 6 weeks, depending on the overall health of the lawn; however, the grass will recover if the affected area is thoroughly watered. This temporary damage is mainly seen in lawns with shallow root systems, which can result from improper watering techniques or poor irrigation coverage.
If damage occurs, please hand-water the affected areas deeply for three consecutive days. We also recommend conducting a sprinkler audit to prevent future issues.
You should see results in 2-4 days, and with proper lawn watering results can bee seen in as little as 24 hours.
For optimal results, we recommend mowing your lawn either two days before or two days after a One Earth application. This timing ensures that the grass is short enough for us to effectively spray the weeds, while also allowing the weeds to have enough surface area to absorb the product.
However, as long as the grass is shorter than 8 inches, there are no restrictions on when the lawn was last mowed. You can mow the lawn as soon as a few minutes before the application or several weeks prior without any issues.
All of the ingredients in our One Earth Weed Control are considered edible and there is no indication that any of the ingredients would be toxic to dogs or any other animals.