Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

4 Types of Cat Grass: Vet-Reviewed Growing Tips & What to Avoid

Share

cat eat young wheatgrass

It’s not every cat’s favorite treat, but many cats love snacking on fresh grass. Fresh grass is an important source of fiber for animals, aiding digestion, and cats use it to help vomit up hairballs, too. Cats obtain beneficial micronutrients like folic acid, trace minerals, and vitamins from chewing on grass.

Fiber improves their digestion and prevents constipation and excessive hairball formation. Wild and domestic cats chew on grass, and we recommend growing chemical-free grass at your house to prevent your cat from seeking potentially toxic lawn grass elsewhere.

In this article, we’ll discuss which grasses to avoid and the four best cat grasses you can start growing today. Read on for the details.

divider 3 paws

Types of Grass to Avoid

Some types of grass aren’t beneficial, and some are toxic to cats. Before choosing a grass, you should learn which types to avoid.

What to Avoid:
  • Lawn seed: These small seeds can become stuck in your cat’s mouth or stomach. Lawn grass is often treated with pesticides and other harmful chemicals that may be quite toxic to cats.
  • Bermuda grass: This common residential grass isn’t toxic to cats by itself, but the pesticides used to treat it are.
  • Grass with descriptors like tall and sweet: There’s no way to identify exactly what types of seeds are included, so it’s best to stay away from generic grass seeds.

divider 3 paws

The 4 Types of Cat Grass

1. Oat Grass

oat grass in clay pot
Photo Credit: Klemenso, Shutterstock
Scientific name Arrhenatherum
Height 2 feet

This sweet grass is a favorite among picky cats, although cats do not have sweet taste receptors. It’s faster growing than other grasses but doesn’t last as long, making it a nice occasional snack for your cat. Like other grass, oat grass is helpful for cats who need a bit of fiber in their diet.


2. Wheat Grass

triticum spelta
Photo Credit: googlestock, Shutterstock
Scientific name Triticum aestivum
Height Preferably 4–6 inches

Wheat grass contains fiber, various micronutrients, vitamins, and minerals. It grows quickly and easily. Many varieties of wheat grass are popular with cats.


3. Orchard Grass

cats eating Wheatgrass
Photo Credit: w.karntaweepong, Shutterstock
Scientific name Dactylis glomerata
Height Can grow up to 24-48 inches

Also called crow’s foot, this cat grass is the quintessential variety for felines. It hangs around for a long time in the early cool spring season, giving your cat plenty of roughage. Orchard grass is thinner than other grasses but more fibrous, and most cats enjoy it. It is easy to care for, requiring moderate sun and consistent moisture to thrive.


4. Barley Grass

barley grass
Image Credit: Steinbach, Shutterstock
Scientific name Hordeum vulgare
Height 2-4 feet

Barley grass is one of the tallest-growing cat grasses, and it produces a healthy supply of greenery for your cat’s diet. Barley can often be mixed with other types of grass, such as oat and wheat, and it contains many of the same nutrients. You can’t go wrong with barley if you’re unsure about which grass to grow for your cat.

divider 3 paws

Tips for Growing Cat Grass

Cat grass can be grown outdoors, but we recommend growing it indoors in planting trays. It only requires moderate sunlight to grow, and clear trays allow you to regulate the water intake. While you’re buying planting trays, you might also consider growing microgreens for your culinary use.

Growing cat grass is very easy and straightforward, requiring minimal gardening supplies or experience. You simply soak the seeds in a wet, moist environment until they sprout—wet napkins are a popular choice. After they germinate, plant them in a pot or tray of soil. Plant them very shallowly, as grasses don’t have deep roots.

Possible Risks Associated With Cat Grass

Eating too much cat grass at once is not healthy. Grass is not digestible and may lead to a blockage in the cat’s stomach and intestines, requiring surgery or endoscopy. 

Inspect your grass regularly for mold, which can also make your cat ill. Some cats that start eating grass may also become very interested in chomping on other plants in the house, and they will not distinguish between the safe and toxic ones. 

Make sure you’re familiar with the toxic plants for cats, such as lilies, and do not keep them if you have a cat, as you can never be sure they won’t get to them and be exposed by either eating a part of the plant, getting pollen on their face and skin, or inhaling some. Some species can cause life-threatening effects in your kitty.

Sometimes, a longer grass blade can get stuck at the back of the cat’s mouth, behind the soft palate, leading to signs of exaggerated and excessive swallowing, drooling, gagging, retching, nasal discharge, sneezing, or vomiting. This will require veterinary attention.

If you are concerned about the health and well-being of your pet, seek veterinary advice for the best course of action.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 3 paws

Conclusion

Cat grass is a small but useful part of any feline’s diet. They need a primarily meat-based diet, but a bit of green roughage may help their digestion and make hairballs less of a pain. Too much can cause a gastrointestinal blockage and other digestive signs, so make sure your cat isn’t constantly chowing down on your cat grass as it grows.


Featured Image Credit: QueenNuna, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

Ask Dr. Paola – Help! How Do I Know if it’s Ear Mites! (May 4, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Hope for the Tiniest Fighters: Baby Kitten Rescue | Heroes of the Pet World

In a world where the smallest and most vulnerable animals are often the easiest to overlook, Caroline and Baby Kitten Rescue’s work is...

More related

7 Best Electronic & Automatic Cat Doors in 2026 — Reviews & Top Picks

If you want an easy and convenient way to let your outdoor cat come and go as they please, buying an electronic or...

15 American Cat Breeds (With Info & Pictures)

Venturing into the unique and diverse world of cat breeds, we often find ourselves marveling at the myriad of shapes, sizes, and personalities...

Ziwi Peak Cat Food Review of 2026: Recalls, Pros & Cons

Review Summary Ziwi Peak has some of the best ingredients and uses almost exclusively animal meat in its formulas. It is foods that...

Catster Photo Contest: Cats of the Week Winners (August 14, 2025)

Every week our team gets the privilege of sorting through our readers photos to choose what cats will win this weeks contest! See...

Keep reading

Why Is My Cat Hiding After a Move to a New Home? 3 Vet-Reviewed Reasons & Solutions

We’ve all been in a situation where we’ve just moved to a new house, and suddenly, the cat is nowhere to be found. Cats may hide for a while after a move, and there are several reasons for it. Though...

A cat hiding under a couch

Is Philodendron Toxic to Cats? Vet-Reviewed Houseplants Examined

As a cat parent, you want to do everything to keep your beloved feline safe and healthy. And, like many other people with cats, you might also enjoy keeping a few houseplants around to brighten up your home or apartment....

Catster_Is Philodendron Toxic to Cats

Are Umbrella Plants Toxic to Cats? Vet Approved Toxicity Explained

Plants are a popular way to beautify your home and break up the concrete jungle with a little bit of natural charm. However, many popular houseplants are toxic for our pets, and ingestion can be deadly. The term “umbrella plant”...

Catster_Are Umbrella Plants Toxic to Cats

How to Put a Cat on a Diet: How, Why & 4 Vet-Approved Steps to Follow

As you may or may not know, cat obesity is a problem in the United States, so much so that up to 63% of cats are deemed overweight 1. If you have an overweight cat, helping your cat shed that...

grey domestic hungry cat

What Can My Cat Eat at Thanksgiving? 16 Vet Reviewed Do’s & Don’ts

Anyone who thinks dogs are the biggest beggars of food in the pet world clearly hasn’t met a cat! However, not all people food is good for our pets. When it comes to Thanksgiving, you may want to celebrate with...

What Can My Cat Eat at Thanksgiving

9 Best Cat Grooming Gloves in 2026 – Reviews & Top Picks

If you have tried to pin your cat down and run a comb through their fur to help clean them, remove dead fur, or spruce them up for guests or a trip to the vet, you might find yourself thinking...

cat grooming

Why Do Cats Stick Their Tongue Out? 10 Vet-Verified Reasons

You might better know a cat with its tongue out as a “blep”, and it’s just one of the reasons that we love cats so much. It’s unclear exactly where that term comes from, but go ahead and search for...

cat bleps

Cat Respiration Rate: How Fast Should My Cat Be Breathing?

You may notice your cat sleeping peacefully next to you and breathing rapidly — or so it seems. Exactly how fast should a cat be breathing? It can be scary not knowing if your cat is all right or not....

close up white cat breathing

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.