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Sunday Lawn & Garden Care

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Dandelion Doom Weed Killer Concentrate Refill

$22

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

Sunday Dandelion Doom iron-based lawn weed killer 5 oz concentrate refill bottlePerson applying Dandelion Doom Weed Control using Sunday pouch and sprayerData SheetData SheetData Sheet

Mini bottle, major results

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

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$22

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Sunday Dandelion Doom iron-based lawn weed killer 5 oz concentrate refill bottlePerson applying Dandelion Doom Weed Control using Sunday pouch and sprayerData SheetData SheetData Sheet

Less bottle, fewer weeds

Dandelion Doom Concentrate Refill is an iron-based broadleaf weed killer for your existing Sunday sprayer. Pour, mix, spray, and watch dandelions, clover and chickweed curl up within hours. The FeHEDTA formula targets weeds while grass stays green. Grab a Starter Pack if you need the sprayer, or build a Custom DIY Lawn Care plan around it.

What makes Dandelion Doom Weed Killer Concentrate Refill different

  • Stops dandelions, clover and 25 more weeds
  • Iron-based formula, no harsh chemicals
  • Visible results in hours, not days
  • Works on moss, algae and lawn diseases too
  • Refill design means less plastic waste
  • Pairs with any Sunday concentrate sprayer setup

Ingredients

Iron chelate (FeHEDTA), the only active ingredient in Dandelion Doom. Iron is naturally present in soil and grass can handle plenty of it. Broadleaf weeds absorb iron much faster, reaching toxic levels that dry them out from the inside. Your lawn gets a deep green color from the extra iron while weeds get stopped cold.

How to use

Apply between 50 to 85 degrees F when no rain is expected for 3 or more hours.

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

How long does it take for Dandelion Doom to work?

Dandelion Doom Weed Killer Concentrate Refill may show visible results within hours of application. Weeds will darken and curl as the iron formula takes effect.

Larger, more established weeds may take longer to fully dry out. For tough weeds, repeat treatment in 3 to 4 weeks.

What weeds does Dandelion Doom control?

Dandelion Doom Weed Killer Concentrate Refill controls over 25 broadleaf weeds including dandelions, clover, chickweed, creeping charlie, thistle and plantain.

It also works on moss, algae and lichens, and can suppress lawn diseases like dollar spot and rust.

Do I need the starter pack to use this refill?

Dandelion Doom Weed Killer Concentrate Refill requires the reusable pouch and wand sprayer from a Dandelion Doom Starter Pack or Starter 2-Pack.

This bottle contains concentrate only. If you do not already have the Sunday sprayer system, purchase a Starter Pack first, and the refill next time.

How does Dandelion Doom work without harming grass?

Dandelion Doom Weed Killer Concentrate Refill uses iron chelate (FeHEDTA) as its active ingredient. Weeds absorb iron fast, reaching toxic levels that dry them out.

Grass tolerates much higher iron amounts. Your lawn may turn deeper green where you spray, which is normal.

When is the best time to apply Dandelion Doom?

Dandelion Doom Weed Killer Concentrate Refill works best when applied between 50 to 85 degrees F on a dry day with no rain expected for 3 or more hours.

Spray when weeds are actively growing for the strongest results. You can apply before or after lawn fertilizer.

Does Dandelion Doom stain surfaces?

Dandelion Doom Weed Killer Concentrate Refill can stain sidewalks, concrete and other hard surfaces due to its high iron content.

Mix and apply over grassy areas only. If you accidentally spill on a hard surface, spray water immediately to dilute it and reduce staining.

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