Cats And Dogs On Marijuana Plants

August 16, 2019

Pets have good and bad aspects to them when it comes to growing marijuana. Dogs, for instance, are especially good at chasing away unwanted animals, such as birds or small mammals.

On the other hand, they can actually harm your plants, especially if they choose your plants as a nice place to defecate.

For some reason, this seems to happen more often than not when you bring your pet along to your grow site.

Signs Cats and dogs

Signs cats dogs cannabis

Domesticated pet poop is not only unpleasant – it could have parasites in it that would be bad news for your compost pile. In other words, it would be a toxic substance to add to your compost pile. If you combine a pet’s defecation with it trampling your plants, it could cause some serious damage to your marijuana plants.

For some reason, many marijuana growers report their pets loving to wind their way through their garden of marijuana plants. Both trample your plants and cats will even pee on them.

Download my free marijuana grow guide at this link for more growing tips

This is especially damaging to your plants because cat urine contains large amounts of ammonia and nitrogen – this will burn your plants. If you ever see your cat (or the neighbor cat) peeing on your plants, make sure to immediately pour water over the soil so the urine is diluted.

Cats are also known to eat marijuana plants. I used to have a cat that always tried to sneak into my grow room and have some leaves. I think I know what attracts them to marijuana but it’s still weird 😉

Not sure if cats and dogs are causing the damage to your marijuana plants? Check the article Marijuana pest and bug control for a list with pictures of all pests and bugs

How to get rid of cats and dogs

Get rid cats dogs weed

The only sure-fire way of ensuring that your pets don’t cause any damage to your marijuana plants is to train them to avoid the garden altogether. It’s not as tricky as it might sound. Even cats will know to stay away from your plants if you put a dusting of hot chili pepper across the soil. This method even keeps other pests (besides your pets) away, so it’s a win-win.

If you have an indoor cat, you should also make sure their indoor litter box is nice and clean. If it’s an outdoor cat, you should make some sort of a sand-based area that cats will prefer to use. You do need to always keep it clean, however, or else cats will find a new location to do their business.

Download my free marijuana grow guide at this link for more growing tips

Another way to keep all cats away is placing chicken wire across the top of your soil. Cats find it unpleasant to walk on and, therefore, will avoid it. You can then use wire cutters to cut holes where your plants will grow.

Dogs’ main problem is their addiction to digging. If you have a pet dog, give it an area where it is allowed to dig. If you have trouble training them to only dig in one area, keep them on a leash – don’t confine them to too little space, but at least keep them away from your marijuana garden.

List of marijuana plant symptoms

– Cats or dogs digging around marijuana plants
– Cats or dogs defecating near plants
– Burnt roots
– Plant death

Sometimes pets will chew on your plants or on the weed you get from those plants. The THC doesn’t only work on humans – it has an effect on pets, too. While it usually will mellow out most cats and dogs, about a quarter of animals who ingest marijuana become hyped up and loud-mouthed.

While it might sound funny, ingesting marijuana can actually be quite dangerous for your pets. Keep the marijuana away from your precious pets.

Remember that plants with strong genetics have less change of getting sick and are less vulnerable for pests and diseases. So make sure to buy marijuana seeds from a trusted seed bank.

Thanks for reading. Please leave comments or questions below and don’t forget to download my free grow bible


The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]


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  1. By Panda Broad ,27 Sep 2014
    can you please tell me... do I water my plants with sprinklers in my hothouse from above... or do I need to water them at the root level???
  2. By Symptom Checker – Identify Marijuana Plant Problems ,20 Jul 2015
    […] Cats and dogs […]
  3. By Amrit ,27 Aug 2015
    Pretty great post. I simply sbetmlud upon your weblog and wished to mention that I have really loved surfing around your weblog posts. After all I will be subscribing to your rss feed and I hope you write once more […]Read More
  4. By Marijuana Pests & Bugs – Control And Identification ,23 Oct 2015
    […] Cat urine is extremely high in ammonia and can badly damage your plants (besides the terrible smell). Plus, fecal matter from pets can attract parasites and pests that you don’t want crawling around. In general, you’re better off keeping […]Read More
  5. By Alan Linell ,09 May 2016
    1. By Bam ,27 Jul 2016
      My cat has eaten many of my weed plants. The ENTIRE plant. More than once. As aggravating as it is, do I blame her? No, I probably would too if I were here. She ate an entire budding clone. She […]Read More
      1. By Roy ILGM ,28 Jul 2016
        Good to hear your cat's okay Bam! And thanks for the great morning read!
    2. By DS ,08 Feb 2018
      animals eat marijuana for the same reason they eat any vegetative matter, not to get high. raw marijuana still must be decarboxalized to have that high effect on animals the same as people. you cant get high eating marijuana unless […]Read More
  6. By Growing Marijuana In A Greenhouse ,13 May 2016
    […] a greenhouse, you are more likely to encounter pests like small insects rather than deer, rabbits, pets, and birds. This will already ensure the safety of your plants far more than if they were exposed […]
  7. By joschmoe ,07 Mar 2017
    eating cannabis has little to no effect. the THC must be decarboxylated via heating it.
  8. By wayne ,16 Aug 2017
    middle of agaust 2 foot plants they are healthy but puny what can i do to at laeast make a few buds? its only 2 plants and i moved then to full sun
  9. By Nicole ,01 May 2019
    I bought two clones a week ago and when I woke up a couple of days ago all the leaves were eaten off of one by my 🐈. He's fine, but is there a way to get the clone to […]Read More
  10. By Steven ,20 Aug 2020
    Should be called cat lady advice with a half assed dog comment at the end. Weakly contrived and mistitled! Sad cat lady wants to offer a sentence on dog advice yet misappropriation of title offering no real advice for dogs!

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