How to Get Rid of Weeds in Lawn: Complete Weed Control Guide

Weeds can quickly take over your lawn if left unchecked. Learn effective methods to identify, control, and prevent weeds for a healthy, weed-free lawn.

1-2 hours
beginner
spring

Tools You'll Need

  • Hand weeder or dandelion digger
  • Sprayer (for liquid herbicides)
  • Spreaders (for granular products)
  • Garden gloves
  • Safety glasses

Materials

  • Selective herbicide
  • Pre-emergent herbicide
  • Fertilizer with weed control
  • Water

Step-by-Step Instructions

1

Identify the Weeds

Different weeds require different treatment methods. Identify whether you have broadleaf weeds, grassy weeds, or sedges.

Pro Tips

  • Take photos for identification
  • Use weed identification apps
  • Consult local extension office
2

Choose Treatment Method

Select between manual removal, selective herbicides, or non-selective herbicides based on weed type and lawn condition.

Pro Tips

  • Manual removal works for small infestations
  • Selective herbicides preserve grass
  • Use non-selective carefully
3

Apply Treatment

Follow product instructions carefully. Apply herbicides when weeds are actively growing and weather conditions are favorable.

Pro Tips

  • Don't apply during rain or high winds
  • Avoid treating wet grass
  • Follow label rates exactly
4

Monitor Results

Check treated areas after 1-2 weeks. Reapply if necessary, but avoid over-application which can damage grass.

Pro Tips

  • Some weeds require multiple treatments
  • Be patient with results
  • Don't over-treat
5

Prevent Future Weeds

Maintain a thick, healthy lawn through proper mowing, watering, and fertilizing. Apply pre-emergent herbicides in early spring.

Pro Tips

  • Healthy grass crowds out weeds
  • Mow at proper height
  • Water deeply and infrequently

Frequently Asked Questions

When is the best time to treat weeds?

Spring and fall are ideal times. Treat weeds when they're actively growing and temperatures are moderate.

How long does weed killer take to work?

Most herbicides show results within 1-2 weeks, but complete control may take 3-4 weeks.

Can I use weed killer on new grass?

Wait until new grass is well-established (usually 3-4 mowings) before applying herbicides.

Are organic weed killers effective?

Organic options work but may require more frequent applications and are less effective on established weeds.

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