How to Kill Fleas When Watering Plants


Fleas are among the most hated insects out there. Although they are very small, these pests can quickly reproduce, spreading throughout your home and among your pets. Before you know it, you have a flea infestation in and around your home. Outdoors, fleas thrive in shady, thick-growing areas among your shade-loving flowers. You can treat your outdoor infested areas with commercial flea treatments; however, such treatments could easily affect the growth of your flowers. There are simpler ways to kill the outdoor fleas without harming the growth of your plants.

Step 1

Use a water hose and a hose spraying attachment with the dilution dial set to 2 tbsp. Fill the spraying attachment reservoir with 3 parts water and 1 part ivory dish-washing soap.

Step 2

Spray your plants and lawn thoroughly to make sure the sprayed solution reaches the ground below. Refill the spraying reservoir as needed until the entire lawn has been treated. Repeat the spraying every four weeks until the presence of the fleas has subsided.

Step 3

Purchase nematodes at your local garden specialty store or from an online retailer, and spread them around your lawn. Nematodes will feed on the flea larvae, helping to reduce the amount of fleas present. The nematodes will be dehydrated at the time of purchase and will need to be spread at the time of watering to ensure they are completely hydrated.

Things You'll Need

  • Water
  • Water hose
  • Water hose spraying attachment
  • Ivory dish-washing soap
  • Nematodes


  • Paw Rescue: Flea Prevention
  • Stop The Fleas: Flea Facts
Keywords: lawn flea prevention, preventing flea infestations, killing flea colonies, kill fleas watering

About this Author

Jason M. Bruner is a freelance writer who has been in the field for more than five years. His content has been previously published on sites such as eHow.