Key Facts at a Glance
- Product categories: Selective herbicide, non-selective herbicide, pre-emergent
- Main active ingredients: Ammoniated soap of fatty acids (Weed Warrior), Iron HEDTA (Dandelion Doom)
- Key certifications: OMRI-listed, EPA Biopesticide approved
- Speed of results: Weed wilting visible in hours; some results in as little as 20 minutes
Sunday's weed control approach
As unwanted as weeds may be, using toxic chemicals to remove them is just not worth the risk—especially when there is a better and easier way.
We aim to reduce pesticide use by helping you grow a strong, lush lawn that naturally crowds out weeds. When weeds do poke through, our targeted approach will take care of them with as little product as possible. That way, we can eliminate the weeds with minimal disruption to your natural lawn ecosystem.
Weed Warrior
Weed Warrior is our fast-acting weed killer that kills weeds and grasses. It is approved for organic gardening, but as a non-selective herbicide (meaning it kills all plants it contacts), it should be used carefully around other plants.
Results are visible in as little as 20 minutes.
What’s in It
Weed Warrior uses ammonium soap of fatty acids to create a non-staining herbicidal soap. An OMRI-listed product, it's certified organic under the USDA's National Organic Program.
How it works
Our ready-to-use formula dissolves the waxy cuticle of plants, causing weeds and grasses to dehydrate and die. Results are visible in as little as 20 minutes depending on the weather.
What weeds it controls
Weed Warrior is effective on most weeds in lawns, gardens, and yards, including:
- Grassy weeds: crabgrass, annual bluegrass
- Broadleaf weeds: chickweed, dandelion, mustards, plantain, pigweed, mallow, sorrel, stinkweed, thistle.
How to use it
Dandelion Doom
Dandelion Doom is a selective herbicide (meaning it kills specific weeds without harming grass) built iron-tough to kill broadleaf weeds without harming your lawn. This powerful weed killer uses iron (Fe) and cutting-edge plant science to attack weeds at their root while greening your grass.
Weed wilting is often visible in just hours
What’s in it
Dandelion Doom uses a specially formulated iron chelate solution to naturally kill troublesome weeds down to the root while boosting grass resilience. Our special formula is made with Iron HEDTA (FeHEDTA), an EPA-approved biopesticide ingredient. Results are often visible in just hours.
How it works
Broadleaf weeds absorb Dandelion Doom quickly and in larger quantities than grass does. This causes the unwanted plants to experience cellular damage, ultimately killing the weeds without harming your lawn. In fact, the iron boosts grass greenup and resilience for a stronger, weed-free lawn.
What weeds it controls
Dandelion Doom effectively targets the most common broadleaf weeds in lawns, including:
- Broadleaf weeds: dandelions, clovers, chickweed, thistle, creeping charlie
- Moss & algae: moss, algae, lichens
- Lawn diseases: suppresses common lawn diseases such as dollar spot, rust, and snow mold
How to use it
Sunday Tip:
Keep in mind: Iron may temporarily turn your grass dark green or black, but don't worry, the staining will fade with time. Dandelion Doom may stain concrete, clothes, or other light surfaces, avoid applying to these areas.
Summary
Sunday's weed control products are EPA-approved biopesticides that eliminate weeds using plant-based or iron-based active ingredients instead of harsh synthetic chemicals. Weed Warrior is a non-selective, OMRI-listed herbicide that kills all plants on contact, while Dandelion Doom is a selective herbicide using Iron HEDTA to target broadleaf weeds without harming grass. Both products deliver fast, visible results and are designed to minimize disruption to your lawn's natural ecosystem
Frequently Asked Questions
Is Sunday weed killer safe for grass? Dandelion Doom is safe for grass; it is a selective herbicide that kills broadleaf weeds without harming your lawn. Weed Warrior is non-selective and will kill grass if directly applied.
What is the active ingredient in Dandelion Doom? The active ingredient in Dandelion Doom is Iron HEDTA (FeHEDTA), an EPA-approved biopesticide.
How quickly does Sunday weed control work? Weed Warrior often shows results in as little as 20 minutes, while Dandelion Doom can cause visible weed wilting in just hours.
Are Sunday herbicides organic? Weed Warrior is OMRI-listed and certified organic under the USDA's National Organic Program; Dandelion Doom is EPA Biopesticide approved, but not organic.
Grow a weed-free lawn
Our custom lawn plans are made for your lawn—weeds and all. Our personalized lawn quiz will help us build the right plan for your lawn's needs and help you grow healthier grass to outcompete weeds.