Are Cats Attracted To Catnip – Protecting Your Catnip From Cats


By: Mary H. Dyer, Credentialed Garden Writer

Does catnip attract cats? The answer is, it depends. Let’s explore the interesting relationship between cats and catnip plants.

Why are Cats Attracted to Catnip?

Catnip (Nepeta cataria) contains nepetalactone, a chemical that attracts many cats, including tigers and other wild felines. Cats typically react by rolling or chewing on the leaves, or by rubbing against the plant. They may even get a little crazy if you have traces of catnip on your shoes.

Some cats become super playful while others become anxious, aggressive, or sleepy. They may purr or drool. A reaction to catnip lasts only five to 15 minutes. Catnip is “purr-fectly” safe and non-addictive, although ingesting a large amount could potentially cause a mild tummy upset.

If your cat shows no interest in catnip, this is also normal. Sensitivity to catnip is genetic and about one-third to one-half of cats are totally unaffected by the plant.

Protecting Your Catnip from Cats

Catnip isn’t a particularly pretty herb and it tends to be somewhat aggressive. However, many gardeners grow catnip for its medicinal qualities, making safeguarding catnip plants necessary.

Tea made from catnip leaves is a mild sedative and may relieve headaches, nausea and insomnia. The leaves are sometimes applied directly to the skin as a treatment for arthritis.

If the neighborhood felines are visiting your catnip plant more than you like, you may need to protect the plant from too much kitty attention.

About the only way of protecting your catnip from cats is to surround the plant with some type of enclosure. You can use wire fencing, as long as paws can’t easily fit through the holes. Some people like to put potted catnip in a birdcage.

Catnip also does well in hanging baskets, as long as the basket is safely out of reach.

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Why cats are crazy for catnip

Cat owners flood the internet with videos of their kitties euphorically rolling and flipping out over catnip-filled bags and toys. But exactly how catnip—and a substitute, known as silver vine—produces this feline high has long been a mystery. Now, a study suggests the key intoxicating chemicals in the plants activate cats’ opioid systems much like heroin and morphine do in people. Moreover, the study concludes that rubbing the plants protects the felines against mosquito bites.

“This study essentially has revealed a new potential mosquito repellent” by examining the “pharmaceutical knowledge” of cats, says Emory University biologist Jacobus de Roode, who did not participate in the study.

Catnip (Nepeta cataria) and silver vine (Actinidia polygama) both contain chemical compounds called iridoids that protect the plants against aphids and are known to be the key to the euphoria produced in cats. To determine the physiological effect of these compounds, Iwate University biologist Masao Miyazaki spent 5 years running different experiments using the plants and their chemicals.

First, his team extracted chemicals present in both catnip and silver vine leaves and identified the most potent component that produces the feline high: a minty silver vine chemical called nepetalactol that had not been shown to affect cats until this study. (The substance is similar to nepetalactone, the key iridoid in catnip.) Then, they put 10 leaves’ worth of nepetalactol into paper pouches and presented them, together with pouches containing only a saline substance, to 25 domestic cats to gauge their response. Most of the animals only showed interest in the pouches with nepetalactol.

To make sure this was the object of the felines’ attraction, they repeated the experiment with 30 feral cats—and one leopard, two lynxes, and two jaguars living in Japan’s Tennoji and Oji zoos. Big or small, the felines surrendered to the substance, rubbing their heads and bodies in the patches for an average of 10 minutes (see video, above). In contrast, dogs and mice that were tested showed no interest in the compound.

Next, the researchers measured beta-endorphins—one of the hormones that naturally relieves pain and induces pleasure by activating the body’s opioid system—in the bloodstreams of five cats 5 minutes before and after exposure. The researchers found that levels of this “happiness hormone” became significantly elevated after exposure to nepetalactol compared with controls. Five cats that had their opioid systems blocked did not rub on the nepetalactol-infused pouches.

But the researchers wanted to know whether there was a reason for the cats to go wild, beyond pure pleasure. That is when one of the scientists heard about the insect-repelling properties of nepetalactone, which about 2 decades ago was shown to be as good as the famed mosquito-stopper DEET. The researchers hypothesized that when felines in the wild rub on catnip or silver vine, they’re essentially applying an insect repellant.

They first showed cats can transfer the chemical to their skin, and then conducted a live mosquito challenge—similar to when people’s arms are used to evaluate insect repellants. They put the nepetalactol-treated heads of sedated cats into chambers full of mosquitoes and counted how many landed on them—it was about half the number that landed on feline heads treated with a neutral substance, they report today in Science Advances .

Most scientists and pet owners assumed the only reason that cats roll around in catnip was for the euphoric experience, Miyazaki says. “Our findings suggest instead that rolling is rather a functional behavior.”

The researchers speculate that cat ancestors might have rubbed their bodies against the plants by chance, enjoyed the feeling, and kept doing it. It is not clear, though, whether it was the euphoric response—or the insect-repelling properties of the plant—that kept them rolling. “Anyone who has ever sat in the field to observe animals ambushing prey knows just how difficult it is for them to keep still when there are many biting mosquitoes around,” Miyazaki says. “It does not seem unreasonable, therefore, to argue that there is a strong selection pressure” to keep away annoying bugs.

The team, which has already patented an insect repellent based on nepetalactol, plans next to identify the cat genes involved in the catnip response and examine the substance’s action against other insect pests. De Roode, who is impressed by how thorough the experiments were, says the work provides a “really interesting” example of how insects can shape animal behavior. “It is amazing how much we can learn from animals.”


How long does a cat stay high on catnip?

There is a question I get asked quite often, particularly by parents who are looking for answers to how long does a cat stay high on catnip.

The answer is, in my opinion, that cats don’t usually stay high on catnip for very long.

Feline neuro-chemicals are known to change the behavior of felines. For instance, when their “reward centers” get over-stimulated they tend to go on a high, high-pitch pitch “grooming” loop which can last for several hours.

Felines are “testosterone” animals. They have much more behavioral flexibility than any other mammal. They will go from ultra-sensitivity to sensitivity at the drop of a hat.

The primary way cats eliminate waste is through urination. Cats, like humans, also need a liquid diet to drink.

The answer to the question is that catnip is not actually the “cure” for urinating problems.

Cats are not generally soiling themselves through catnip, although they may do so in unusual situations.

First of all, cats don’t generally get their vital nutrient sources from catnip. They will eat catnip, but they won’t get nutrition through catnip.

Not only that, catnip is actually toxic. It is a weed that’s been cultivated for its reddish flowers. The flowers attract bees and flies, so the plants are easy prey for those insects.

The leaves contain the non-toxic, even in relatively small amounts, poisonous alkaloid called thujone, which is almost identical to the dangerous alcohol, ethanol. A 50% extract from the leaves can easily kill a human being.

Cats have been known to pass up live mice laced with thujone. In fact, cats are rather lucky cats because there’s a time and place for kitties to get stung.

However, cats are not always at home in a yard. Cats are not generally happy when placed in an enclosed, fenced in area with many openings. Cats will instinctively search out the only opening.

These cats usually end up finding holes through which the drug can escape and become poisonous. To prevent your cat from getting stung with catnip, be sure that there is no such kind of hole in your yard.

Conclusion

Cats can be a lot of fun, especially when they like your cats.

The majority of cats, however, enjoy playing with pet nip, which can make them want to stay in a pen all day.

But it’s not a cause for concern if you leave catnip-laced catnip on the floor or try to direct your cat to keep on playing rather than trying to figure out where you left the goodies.



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