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Getting Weeds Out of Southern Lawns

February 23, 2018

The first line of defense against weeds taking over your lawn is to make your lawn denser and thicker by feeding regularly during the year. Three to five feedings a year really helps your grass crowd out young weeds before they get a chance to get a toehold. (Note: Centipede Grass should only be fed two or three times a year.) The second defense is to mow your grass at one of the higher settings on your mower.

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This lawn owner feeds her St. Augustine grass lawn on a regular schedule. Most lawns thrive with 4 or 5 feedings a year.

Here are options for killing weeds in your Southern lawn without hurting your good grass:

Option 1: If you want to kill weeds while feeding your lawn here are your product options:

  • Scotts Bonus S Southern Weed & Feed – use on St. Augustinegrass (including Floratam). (Note: This product can also be used on Zoysia and Centipedegrass lawns, however Turf Builder Weed & Feed may be a better option for these lawns depending on the weeds you are trying to kill – see below.) Apply Bonus S to a dry lawn and water after spreading.
  • Scotts Turf Builder Southern Triple Action – use on St. Augustinegrass (including Floratam). (Note: This product can also be used on Zoysia and Centipedegrass lawns). This unique new formula feeds, kills weeds and kills/prevents Fire Ants. Apply to a dry lawn and water after spreading.
  • Scotts Turf Builder Weed & Feed – use on all Southern Lawns except St. Augustinegrass. Apply to a moist lawn and do not water for 24 hours after spreading.

Option 2: If you want to kill weeds without feeding your lawn here are product options:

Option 3: Preventing new crabgrass and other annual weeds.

  • There is still time in most Southern areas to apply Scotts Halts (without the Turf Builder) on your southern lawn to prevent annual weeds that have not shown up yet from germinating.

If you have lawn weed questions contact the Scotts Help Center.

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