When Is a Rabbit Fully Grown? Growth Stages of Your Pet Bunny

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Rabbits grow rather quickly. So quickly that a female rabbit can start reproducing at 4-6 months old, but how big can a rabbit grow, and when do rabbits stop growing? Like completely stop growing.

To be frank, it’s hard to tell when a rabbit will stop growing. The most important factor influencing a rabbit’s growth rate is the breed. Here’s an overview of the growth rate of the most common pet rabbits and other factors that influence growth.

Holland Lops

Fully grown holland lop rabbit on green grass.

Holland Lops are a small breed of domestic rabbits that are popular as pets due to their cute and compact size. They typically stop growing when they are around seven months old and do not usually weigh more than 4 pounds at maturity.

Despite their small size, Holland Lops have a playful and curious personality and can make great companions for families or individuals who have limited space.

French Lops

Fully grown French Lop rabbit in front of a pink background.

French Lops are a popular breed of domestic rabbits known for their large size and adorable floppy ears. They usually stop growing at around ten months old and can weigh up to 15 pounds when fully grown.

As with all pets, it’s important to provide them with proper care, attention, and a healthy diet to ensure they reach their full potential. French Lops have a sweet and friendly personality, making them great pets for families or individuals who have the space to accommodate their size.

The Rex Rabbit

White and black Rex rabbits in front of a white background.

There are two sizes of rex rabbits, the standard and the miniature. Both have thick, soft hair and long upright ears. The standard-sized Rex stops growing at nine months old. It weighs anywhere between 7-10 pounds when fully grown. The miniature Rex weighs up to 4 pounds and stops growing by seven months.

The Flemish Giant

Two Flemish Giant Rabbits

Flemish Giants are a breed of domestic rabbits that originated in Belgium and are now commonly kept as pets. They are known for their impressive size, with some individuals reaching up to 22 pounds when fully grown. This makes them the largest breed of rabbits that are commonly kept as pets.

Despite their size, Flemish Giants are known for their calm and friendly demeanor, and make great companions for those willing to provide them with the space, attention, and care that they need. While they can continue to grow up to 18 months, it’s important to note that their growth rate may vary based on individual factors such as genetics, diet, and exercise.

The Netherland Dwarf Rabbit

Netherland Dwarf Rabbits

Netherland Dwarfs are a popular breed of domestic rabbits known for their small size and cute appearance. They are one of the smallest rabbit breeds and typically stop growing at around five months old. As adults, they usually weigh up to 3 pounds.

The Bottom Line

How big a rabbit can grow depends on its breed, diet, and care. Some rabbits, even those of the same breed, can grow faster or slower than others. There is no guarantee that a rabbit of a particular species will stop growing at a specific time. If you feel like your rabbit is not growing as fast as it should, you ought to seek veterinary help.

Rabbits are generally considered fully grown at around 6 months old, although their growth rate may vary based on breed and individual factors. At this age, they will have reached their full size and weight and have developed their adult teeth, coat, and behavior.

However, it’s important to note that rabbits may continue to mature emotionally and socially beyond this point, and should still receive proper care and attention throughout their lifespan.

Thanks for reading about rabbit growth rates here on Rabbit Care Basics! Feel free to share the article on social media and check out some of our other articles like, How Long Are Rabbits Pregnant For?

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