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Weed & Green Pre-emergent and Post-Emergent Weed Killer

$25

(1) 32 oz. concentrate, covers up to 2,500 sq. ft.

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Stop weeds before they start. Handle the ones that already showed up.

Tackles dandelions, clover, and broadleaf weeds already in your lawn, suppresses crabgrass, and greens up your grass. No synthetic herbicides.

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Weed control that kills weeds, not your grass

Picture your lawn two weeks from now. Greener. No dandelions poking through. No crabgrass creeping in from the edges. That's what Weed & Green is built to do.

One iron-based formula handles five jobs at once: knocking out broadleaf weeds already growing, suppressing crabgrass and weed germination before they start, clearing moss and algae, helping keep lawn disease in check, and boosting grass color in the process.

Targets what shouldn't be there. Leaves your grass greener.

Now available in custom lawn plans. Not a subscriber yet? Build your plan.

What's doing the work

  • Broadleaf weed killer Tackles dandelions, clover, chickweed, and more on contact
  • Crabgrass preventer Suppresses crabgrass and annual weeds before they sprout
  • Moss, algae, and lichen control Clears what creeps in where grass struggles
  • Lawn disease suppression Helps keep common fungal issues out
  • Fast green-up Iron boosts grass color while it works on weeds
  • Hose-end ready Sprayer included, no mixing needed
  • Safe for all turfgrasses For cool and warm season grasses

Backed by our satisfaction guarantee

How to use

  1. Attach the sprayer to your hose.
  2. Apply evenly to a dry lawn, temperatures between 50 and 85°F.
  3. Reapply in 3 to 6 weeks if hardy weeds persist.

Seeding after Weed & Green: Wait 1 day before seeding. Heads up: Iron can stain hardscapes. Rinse any pavement immediately if you get drift. Not sure what you're dealing with? Use our weed ID guide.

What weeds does Weed & Green kill or control?

Broadleaf weeds including dandelions, clover, chickweed, spurge, and oxalis. It also suppresses germination of crabgrass and other annual grassy weeds, and clears moss, algae, and lichen. For a full weed list, check the product label in documents.

Can I put down pre-emergent and fertilizer at the same time?

You can on the same day, not the same time. Apply fertilizer first, let it dry fully, then apply Weed & Green. And yes, Weed & Green can be used as a pre-emergent and post-emergent weed control in the same season, just follow the timing on the label.

How often do I need to apply Weed & Green?

Apply once thoroughly to the lawn, and then reapply 3 to 6 weeks later in the growing season. We recommend only applying up to two times as a preemergent or post-emergent in your lawn.

When do I apply Weed & Green?

Early spring is your best window for crabgrass prevention, typically when soil temps are approaching 55°F. For existing broadleaf weeds, apply any time during the growing season when weeds are actively growing and temperatures are between 50 and 85°F.

Can I put grass seed down after Weed & Green?

Yes. Wait 1 day after applying, then seed as normal.

How long after applying is it safe for kids and pets?

Once fully dry, it's safe for kids, pets, and bare feet. On a warm sunny day that's usually 1 to 2 hours. Give it a bit longer if it's cool or humid.

How soon will I see results?

Most broadleaf weeds show visible wilting within 24 to 72 hours. Full results within 1 to 2 weeks depending on weed size and conditions. The green-up from iron is often visible within a few days.

How much lawn does the Weed & Green cover?

Each bottle covers up to 2,500 sq. ft. per post-emergent application, and up to 1250 sq. ft. for a pre-emergent application.

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