Natural Herbs That Kill Fleas

If you're a pet owner and you make the unfortunate discovery that fleas have infested your animals or home, you may not need to run out and buy chemical repellents to take care of the problem. Sometimes you can use natural herbs to kill the fleas on your dogs and cats in a way that is safer for them and the environment. Knowing the herbs that are effective against fleas can help your pets and your home remain flea free. Put an end to the pesky parasites without subjecting your home and pets to harmful substances.

Eucalyptus Mixture

Use natural herbs to get rid of fleas on your pet and in your home.

Eucalyptus is a pleasant smelling herb to most people, but fleas have a different opinion. The essential oils from eucalyptus and other herbs can be combined to make a natural flea collar for your pet to get rid of fleas. Combine eucalyptus oil, sage and citronella and dip a piece of string or thin rope in the mixture to saturate it then tie it around your pet's neck to get rid of the pests.

Orange Oil

Orange oil is an herbal product you can use to kill fleas once they have set up shop on your pet. Add 1/2 tsp of orange oil to any regular shampoo and mix it together and scrub your pet thoroughly. Always start at the neck and work your way down so the fleas don't rush to the animal's face. You'll want to vacuum the house after the wash and throw away the vacuum bag immediately to prevent repopulation, according to the Giving Herbs to Your Pet for Dummies website.


Pennyroyal is a potent flea repellent and killer. This herb is best used to plant around the perimeter of an area you wish to keep fleas away from. Using the herb topically or taking it internally is not recommended because of specific health hazards. According to The Daily Puppy website, pennyroyal can cause liver damage and neurological problems.


Neem oil is a safe and effective flea killer that will rid cats and dogs of the pests with a topical application. This herbal oil from India is easily found in pet stores or you can grow the plant indoors if you choose to get it directly from the source.

According to The Daily Puppy website, neem oil is likely to cause a total eradication of fleas on your pets.

About the Author

Lee Morgan is a fiction writer and journalist. His writing has appeared for more than 15 years in many news publications including the "Tennesseean," the "Tampa Tribune," "West Hawaii Today," the "Honolulu Star Bulletin" and the "Dickson Herald," where he was sports editor. He holds a Bachelor of Science in mass communications from Middle Tennessee State University.