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Can kittens have catnip?

Kitten peeking out from behind catnip plant
(Image credit: Getty Images)

Can kittens have catnip? That's the question on the lips of many new pet parents who have welcomed a curious and playful bundle of joy into their family and are looking for ways to entertain them and help them burn off some of that surplus energy. 

If you've already got your new pet set up with the best kitten food, a good litter tray, a scratching post and somewhere cozy to sleep, it’s time to think about playtime. Lively young brains need a lot of stimulation, so try to provide a range of options to keep them occupied. If you’re considering toys with added catnip to make them appealing, you might be worried about whether kittens can have catnip. Let’s take a look…

What is catnip?

So, just what is catnip anyway, and why do cats like it so much? Catnip is a plant, Nepeta cataria, a member of the mint family. It’s known as catswort, catwort or catmint, which is a clue as to what most people associate it with! It’s native to Asia, the Middle East, parts of China and Europe, but it’s easy to grow in North America if you fancy a pot for your windowsill. 

Catnip secretes a substance called nepetalactone, and cats go crazy for the smell. Nepetalactone is found in the stems, leaves and seeds of catnip and when cats roll in the plant, it’s because they’re trying to release more of the oils and boost that delicious aroma. Some cats will nibble catnip, while others completely ignore it. 

Once cats have had a ‘dose’ of nepetalactone they then lose sensitivity to it for between 30 minutes and a couple of hours. If you see your furry feline going crazy for his favorite catnip toy then shoving it under the cupboard and ignoring it, it’s perfectly normal!

In fact, the effect produced by catnip mimics that of feline sex hormones, which is why some cats react to it very strongly. Some males can react by becoming grumpy or even aggressive if they get a whiff of catnip – in that case, it’s better to keep them away from it.

Catnip does lose its potency over time, so keep containers tightly sealed. If you grow your own supply of the herb, you can freeze it and dole it out gradually.

Can kittens eat catnip?

Whether your cat reacts to catnip or not is genetic – roughly half of the feline population loves it while the other half is completely indifferent. Kittens don’t tend to develop a sensitivity to nepetalactone until they’re a little older.

Cats interact with catnip in different ways – they sniff it, eat it or sometimes both. What’s really interesting is that the way they engage with it can cause different reactions. Researchers believe that when cats sniff catnip the scent triggers endorphins (happy hormones) in the brain. This is what causes the ‘yippee!’ reaction many people associate with catnip – where your kitty goes zooming around the room, yowling, rolling and generally having a great time. 

This behavior normally lasts about 10 minutes or so, then your puss will give his previously treasured toy the cold shoulder. This is completely normal, and in a couple of hours or so he’ll be back for more. Some cats seem to prefer to eat catnip, and this causes a more mellow, chilled out reaction. You can find out more here about why your kitty goes crazy for catnip.

Can kittens have catnip toys?

Kitten with catnip toy

(Image credit: Getty Images)

Like all young animals, kittens require a lot of stimulation to keep enquiring minds entertained and stop them getting bored. Make sure any toy you give is suitable for a curious youngster and isn’t too easy to destroy. Kittens will respond best to toys they can interact with, and playthings containing catnip can prove extra-interesting, helping to stave off boredom and other problem behaviors

Kittens who go a bit crazy for catnip run the risk of running into the furniture when they’re playing ‘zoomies’, so make sure they’re supervised! Take a look at our guide to the best catnip toys for inspiration.

If you have a kitty who reacts strongly to catnip, then you can use it as a training aid. Rub their scratching post with catnip oil to encourage puss to use it, or tempt him in from outside with the promise of the tempting treat.

When can kittens have catnip?

Kittens don’t become sensitive to the chemical compounds in catnip until they’re between three and six (or even up to 12) months old. So although it’s fine to offer your kitten catnip at a young age, he or she may well ignore it completely. Continue to offer it at intervals until your cat is a year or so old – if he’s not interested by then, it’s unlikely he ever will be.

How much catnip do you give a kitten?

Catnip isn’t toxic or addictive, so if your kitty accidentally overdoses it’s pretty unlikely to cause major problems. However, kittens have sensitive digestive systems and eating too much of the potent herb could cause vomiting or diarrhea. While adult cats tend to self-moderate, young animals are not normally known for their self-control.

Fresh leaves are more potent than dried, so if you grow your own fresh catnip, keep the plant where your pet can’t reach it. For a kitten, try rubbing a toy with catnip to see how strongly they react. If you’re feeding catnip, start off with very small amounts, such as half a teaspoon a day. If you’re using a commercially prepared product such as dried leaves or a catnip spray, follow dosage instructions on the packaging.

Giving catnip to your kitty in moderation is completely safe and won’t hurt him – it might even be good for his digestion to have a small daily dose. If it makes him hugely excited, just make sure you hide all your breakables before you unleash the catnip mouse!