Dandelion Doom Weed Killer Concentrate Refill

Name: Dandelion Doom Weed Killer Concentrate Refill
Brand: Sunday
SKU: BWS1004
Price: 22.00 USD
Availability: InStock
Rating: 3.7 (113 reviews)

$22

5 oz. concentrate bottle Covers up to 224 sq. ft.

113 reviews

Dandelion Doom weed control concentrate 5 oz

Person applying Dandelion Doom Weed Control using Sunday pouch and sprayer

Mini bottle, major results

Iron-powered selective weed killer refill for your existing Dandelion Doom sprayer system. Controls weeds and moss without harming grass.

Free shipping! Ships in 1-2 business days

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Kill weeds with less waste

Refill your Dandelion Doom starter system for continuous weed control.

This concentrated iron-based formula is designed for your existing Sunday herbicide pouch and wand sprayer. The powerful iron (FeHEDTA) formula targets broadleaf weeds, moss, and lawn diseases while leaving your grass unharmed. It works quickly on dandelions, clover, chickweed, and many other common lawn weeds, offering a sustainable, cost-effective solution for ongoing weed management.

PRODUCT FEATURES

Lawn-safe weed killer concentrate refill
Kills broadleaf weeds, mosses, and algae in lawns
Suppresses select lawn diseases
Iron (FeHEDTA) nutrient formula
Fast acting—results within hours
Kills weeds down to the root
For use with Dandelion Doom starter kits
Treats up to 224 sq. ft.

WHAT'S INCLUDED

5 oz. bottle of iron chelated (FeHEDTA) concentrate weed killer. Designed as a refill for your existing Sunday Dandelion Doom starter kits.

INSTRUCTIONS

For best results, apply between 50-85 degrees F when no rain is expected for 3+ hours:

Pour one full bottle of Dandelion Doom into your reusable Sunday pouch and attach the sprayer
Use your outside hose to fill the pouch up to the 1-gallon mark
Secure the cap of the reusable pouch and shake well
Spray onto weeds in your lawn until leaves are entirely covered
Repeat treatment in 3-4 weeks for best results

Helpful Tips from Lawn Advisors:

How does this lawn-safe weed killer work?

Grass and weeds absorb iron differently. Weeds quickly take in too much iron, which becomes toxic and kills them. Grass absorbs iron more slowly and can tolerate higher amounts.

What weeds does Dandelion Doom control?

Effective against broadleaf weeds like black medic, plantain, thistle, chickweed, creeping buttercup, creeping charlie, dandelion, geranium sp., English daisy, false dandelion, healall, oxalis, speedwell sp/, knotweed, shepherd’s-purse, silverweed cinquefoil, white clover, wild chamomile, as well as moss, liverworts, algae and lichens.

It can also control or suppress lawn diseases: dollar spot, rust and/or snow mold.

Do I need the Dandelion Doom Starter Pack to use this product?

Yes, this is a refill concentrate only. You'll need the sprayer and pouch that come with the Dandelion Doom Starter Pack or Starter 2-Pack to apply this product.

How to use Dandelion Doom with other Sunday products?

You can apply Dandelion Doom before or after lawn fertilizer. Allow weed control products to dry completely before applying other liquid products or watering your lawn–the longer the weed control absorbs, the more effective the application.

Does Dandelion Doom stain?

Yes, it can cause staining due to high iron content. Avoid using on sidewalks or hard surfaces. If you accidentally spill, immediately spray and dilute the area. For best results, mix over grassy or landscaped areas.

Are there any US states where this is not approved for use?

This product is approved for use in all states.

Sunday Dandelion Doom Concentrate Label

Dandelion Doom Concentrate SDS

Dandelion Doom Concentrate herbicide application to dandelions in lawn

Dandelion Doom Concentrate Instructions

Ready to get to the root of your weed problem? Learn how to assemble your concentrate kit, how to apply it, and get best practices to control weeds in your lawn.

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Cat

Verified Reviewer

What does it kill??

So far, I've yet to find a weed that this will actually kill. I've used it in bright sunlight. I've given it time to let them die. I've used an ample application. But nothing is dying. Did I buy a worthless product?

Store Owner

Hi Cat, thanks for sharing your weed control results with us! Here are some Best Practices to follow for best results. 1.) Try to apply on a sunny day. While not mandatory, sunshine will improve the efficacy and speed of our herbicides. With sunshine unfiltered by clouds, our herbicides will work even better. A rainfall within 3 hours after application can make the herbicides ineffective. Optimal temperatures for application are between 50F to 85F. 2.) Apply when the weeds look healthy. When weeds are stressed or injured, weeds release hormones to recover. These hormones make herbicides less effective. Hormones are also released if weeds are mowed; we recommend not applying on the same day you mow. 3.) Apply the leaves liberally. Our herbicides just need to make contact with the leaves to work; trying to apply to the roots won't be effective. For best results, you want the leaves soaked, but not to the point where the herbicides is dripping off the leaves. 4.) Know the age of the weed. Older and established weeds will likely require more applications. For older weeds, we recommend doing multiple applications on the same day; just let the leaves dry out in-between applications.

Published date

03/12/25

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Kelli

Verified Reviewer

Not for crabgrass

This product did absolutely nothing for our crabgrass problem. I was hoping to use all Sunday products since they seem to be safer, but I may have to resort to a different herbicide for the crabgrass

Store Owner

Thank you for sharing your experience! Dandelion Doom is an effective weed control option for broadleaf weeds, but it does not address grassy weeds like crabgrass. Crabgrass can be tricky, particularly because it's so biologically similar to turfgrass! Crabgrass germinates in the summer and thrives in even the toughest of conditions, so it's important to treat the issue as soon as you see it! Our non-selective herbicide, Weed Warrior, will be the most effective option when treating crabgrass and other similar growth. Just be careful when using it within your lawn, since it damages healthy grass as well if sprayed directly on it!

Published date

08/18/24

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David C.

Not effective for me.

I applied on a sunny day and came back to the property a week later and no effect. Weeds that I treated still happily growing.

Store Owner

We're sorry to hear that your weed control results aren't as expected! Here are some Best Practices to follow for best results. 1.) Try to apply on a sunny day. While not mandatory, sunshine will improve the efficacy and speed of our herbicides. With sunshine unfiltered by clouds, our herbicides will work even better. A rainfall within 3 hours after application can make the herbicides ineffective. Optimal temperatures for application are between 50F to 85F. 2.) Apply when the weeds look healthy. When weeds are stressed or injured, weeds release hormones to recover. These hormones make herbicides less effective. Hormones are also released if weeds are mowed; we recommend not applying on the same day you mow. 3.) Apply the leaves liberally. Our herbicides just need to make contact with the leaves to work; trying to apply to the roots won't be effective. For best results, you want the leaves soaked, but not to the point where the herbicides is dripping off the leaves. 4.) Know the age of the weed. Older and established weeds will likely require more applications. For older weeds, we recommend doing multiple applications on the same day; just let the leaves dry out in-between applications.

Published date

07/28/24

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Johnny

Waste of money

ALL of the dandelions I treated came back up within a few weeks. Every one. I spend a lot of money on this stuff. I recommend the Fiskars stand up weeder. WAY more effective and less expensive. If you have a big yard like we do, this stuff just won’t do it. If you have a small yard, and can reapply ...

Store Owner

Published date

07/19/24

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Rachel

Verified Reviewer

Killed my lawn

I applied the this yesterday and woke up today to a completely dead lawn. It was heading in the right direction and now it’s a disaster. Is the dandelion spray supposed to kill all of your lawn???

Store Owner

Thank you for sharing your Sunday experience with us! Dandelion Doom is a selective herbicide which targets broadleaf weeds and is not effective on grass or grassy weeds. We encourage you to reach out to our expert Yard Advisor team; they can take a look at your situation and make the best recommendations. You can reach them at [email protected] or by calling 415-903-6932.

Published date

07/18/24

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Therese

Verified Reviewer

We ordered and paid for Dandelion Doom on 6/14/24 but still haven't received a month later!

We ordered Dandelion Doom Herbicide Concentrate Refill (2-pack) on 6/14/24 and our credit card was processed and charged on 6/15/24 but we never received our order. We needed it right away for an emerging dandelion problem that we wanted to keep under control with a more natural product than most we...

Store Owner

Thank you for taking the time to share your Sunday experience with us, and we're sorry to hear that you were affected by an out-of-stock item. We see that our team was able to refund you in full, and we encourage you to continue working with our team for any further support.

Published date

07/14/24

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Luna H.

Verified Reviewer

Added more weeds to my lawn

My front and back yards are not connected. I have cement and space between each. My back yard had a small amount of thistle in one area, for many years, has NEVER spread before. I used to just mow over them and they would grow back slow. I had dandelions from my front yard neighbor. I purchased the ...

Store Owner

We're sorry to hear that your experience was not as expected! If you've recently raked or tilled your area in order to spread new seed, you may have disturbed a seed bank in your lawn, which can lead to new weeds that you haven't experience before. It sounds like the thistle in your lawn was well-established; these mature weeds can require multiple applications of weed control. For best results, apply in direct heat and sunlight, and try removing any seed heads and splitting the stems of mature weeds before applying weed control.

Published date

07/13/24

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Ann C.

Verified Reviewer

White clover taking over

I couldn't be happier with the Dandelion Doom Concentrate. It was much easier to use than the smaller spray bottle of the same product esp in large applications. My entire yard was being taken over clover. You could see it start working within hours after applying. Now with the rain here in the PNW ...

Published date

06/29/24

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Babu K.

Verified Reviewer

Works but….

Removed some of the weeds but left brown marks in the grass, possibly grass damage. Initially thought it was rabbit pee.

Published date

06/29/24

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Quieria

Verified Reviewer

Effective but scorched my yard

It was pretty effective in killing the dandelions in my backyard, but it also killed the grass. In the areas where I sprayed dandelion doom, my grass looks scorched. It was completely ineffective on my front lawn.

Store Owner

We're sorry to hear that this was your Dandelion Doom experience! Sunday normally works wonders, but every lawn is unique and can experience different challenges from one season to another. Have you connected with your Yard Advisor yet? They're here to help you make the most of your products. You can reach them at [email protected] or by calling 415-903-6932.

Published date

06/19/24

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