How do I kill crabgrass in my raised garden beds?

  8 answers
  • Janet Pizaro Janet Pizaro on Mar 31, 2018

    you have to dig it out or smother it with newspaper,carbaord and heavy landscape fabric.If the garden is not ready for planting you can try white vinegar

  • Jeanette S Jeanette S on Mar 31, 2018

    Dig it out is the best way. Since this soil is probably easy to dig in, it should not be too hard. Use a small shovel or garden trowel and dig it out, making sure you get all the roots.

  • Ann Cherkas Halstead Ann Cherkas Halstead on Mar 31, 2018

    I would just dig them up. You don’t want to spray chemicals in a place where you are planting veggies

    • Cynthia Collison Cynthia Collison on Mar 31, 2018

      We have tried digging it out. We always miss some little root rhizomes and it comes back. The dirt is not hard, but there are a lot of those little roots.

  • Joy30150932 Joy30150932 on Mar 31, 2018

    It has runners underground so you need to pull up as much as you can and then you can spot spray with a mix of vinegar and salt.

  • Tessa Tessa on Mar 31, 2018

    Sprinkle corn gluten meal powder on your lawn at the start of every March (look for when Forsythia shrubs starts flowering) & again 4-5 months later; apply at a rate of 10 pounds for every 500 sq ft of lawn; kills young crab-

    grass seedlings by affecting root development. This can take at least 2-3 years (following recommended application rates on yearly basis) before seeing any results - it's not a quick fix; here's a recipe to also use:


    • 24 oz empty spray bottle
    • 20 oz vinegar
    • 20 drops Clove essential oil (NOT FRAGRANCE OIL)
    • Pinch of salt


    1. Drop pinch of salt into spray bottle.
    2. Add 20 drops Clove or Cinnamon Bark essential oil, aiming it toward the salt (this helps the oil to disperse in the liquid).
    3. Add the vinegar.

    Shake well.

  • Marie Rother Marie Rother on Mar 31, 2018

    Dawn dish detergent and olive oil

  • Johnavallance82 Johnavallance82 on Mar 31, 2018

    I'm afraid you will need to dig it out root and all.......

  • Redcatcec Redcatcec on Nov 18, 2022

    You will have to dig them out, easier after rain.