How to Kill a Houseplant's Fuzzy Mold With Vinegar

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Place plants in sunny areas to avoid mold growth.

Home gardeners and experts alike tout the power of apple cider vinegar for everything from ridding your plants of bugs to cleaning the leaves to a glossy shine. Diluted apple cider vinegar can also help kill fuzzy mold in a houseplant's soil or on the leaves. Gray fuzzy mold can have a number of causes, from overwatering to diseases like Botrytis cinerea. While you may not be able to identify the cause of the mold just by looking at it, mold that results from disease may require more aggressive treatment.

Things You'll Need

  • 1 tablespoon apple cider vinegar
  • 4 cups water
  • Spray bottle
  • Paper towels
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Instructions

    • 1

      Mix 1 tablespoon of apple cider vinegar with 4 cups of water in a spray bottle. Pure spring water is best, but tap water is fine as long as the water is not hard or contaminated. If you only have hard water, purchase some distilled or spring water from your local grocery store.

    • 2

      Spray the leaves and soil of the plant with the solution until the leaves and soil are visibly damp. Be careful not to over-dampen the soil with the solution because increasing the moisture content may cause the mold problem to grow worse, not better.

    • 3

      Gently blot away the mold with a paper towel if it begins sloughing off the plant. If you don't remove the mold, it may recur or it may rot and develop a foul odor.

Tips & Warnings

  • If the first mold treatment doesn't rid the plant of mold, repeat the treatment the next day.

  • If repeated treatments do not get rid of the mold, your plant may have a disease. Seek the advice of an expert gardener or ask a representative at a local plant nursery how to get rid of the mold.

  • Avoid overwatering your plants and place them in a sunny area, if that is appropriate for the plant. The sun will help prevent mold resulting from dampness.

  • Vinegar may also have other benefits, such as keeping curious house pets away from your plants and helping plants that are undernourished absorb more nutrients from the soil.

  • Do not substitute distilled white vinegar for apple cider vinegar. White vinegar may be too strong for some plants and it may kill them, particularly if the plant is young.

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References

  • Photo Credit Hemera Technologies/AbleStock.com/Getty Images

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