Australian Shepherds are known for their intelligence, agility, and high energy levels.
In this comprehensive guide, we’ll explore the Australian Shepherd growth chart, the different stages of their growth, and the six critical factors that influence their weight, height, and overall health.
We’ll also answer some frequently asked questions, like when Australian Shepherds stop growing and when they tend to calm down.
Australian Shepherd Growth Chart Overview: Weights & Heights by Age
Australian Shepherds go through a number of growth phases before they reach their full adult size.
Typically, an Australian Shepherd will grow rapidly in the first 6-12 months, and reach its full adult size between 12-24 months. Let’s break down the average weights and heights by age.
| Age | Weight (Male) | Weight (Female) | Height (Male) | Height (Female) |
| 0-1 Month | 3-5 lbs | 2-4 lbs | 2-3 inches | 2-3 inches |
| 2 Months | 7-12 lbs | 6-10 lbs | 4-6 inches | 4-6 inches |
| 3 Months | 15-20 lbs | 10-15 lbs | 7-9 inches | 7-9 inches |
| 4-6 Months | 25-35 lbs | 20-30 lbs | 12-14 inches | 12-14 inches |
| 6-8 Months | 35-45 lbs | 30-40 lbs | 16-18 inches | 16-18 inches |
| 8-12 Months | 45-55 lbs | 35-50 lbs | 18-20 inches | 18-20 inches |
| 12-24 Months | 50-65 lbs | 40-55 lbs | 20-23 inches | 18-21 inches |
The table above provides a general idea of the expected growth of an Australian Shepherd. While some individual dogs may vary, most will follow this pattern closely.
Growth Stages of an Australian Shepherd: Month-by-Month Breakdown
Let’s dive deeper into each growth stage to understand what changes happen at each phase of an Australian Shepherd’s life.
0-1 Month: Neonatal Stage
During the first month, Australian Shepherd puppies are fully dependent on their mother for warmth, nourishment, and care.
Puppy growth during this time is rapid, but they remain fragile and must be handled gently.
- Eyes and ears begin to open.
- They start to gain coordination, though movements remain shaky.
2 Months Old: Socialization Begins
At around 2 months, Australian Shepherd puppies begin to explore the world. This is the ideal time for socialization and basic training.
- First vaccinations are administered.
- Puppies should weigh between 7-12 lbs (males) and 6-10 lbs (females).
- Basic commands like “sit” and “stay” can be introduced.
3 Months Old: Puppy Playfulness
At this stage, Australian Shepherds begin to show their famous high energy levels. You’ll notice teething as they start chewing on objects, so have plenty of toys ready.
- Weight gain continues as they grow stronger.
- This is an excellent time for continued socialization with other dogs and humans.
- Start crate training and basic leash training.
4-6 Months Old: Early Adolescence
During the 4-6 month period, Australian Shepherds experience a growth spurt. Their bodies develop rapidly, and they need consistent exercise and mental stimulation.
- They reach approximately half of their adult size.
- Early adolescence is marked by testing boundaries, so training should be consistent.
- Regular veterinary check-ups are essential during this phase.
6-8 Months Old: Approaching Adolescence
By 6-8 months, your Australian Shepherd is beginning to resemble an adult dog in appearance, though they still have some growing to do.
- Height continues to increase, with males reaching up to 18 inches and females up to 16 inches.
- Behavior may become challenging due to puberty, so firm training and patience are necessary.
8-12 Months Old: Teenage Stage
At this stage, Australian Shepherds may test their limits more, displaying increased independence. They may begin to show adult personality traits, but they’re not fully mature yet.
- Males can weigh up to 55 lbs and females up to 50 lbs.
- Continue physical and mental activities to burn off their high energy.
- This is a great time to introduce agility training to harness their intelligence.
12-24 Months: Full Growth & Maturity
By 12-24 months, your Australian Shepherd will have reached their full height and most of their adult weight. Muscle development and final physical maturity will occur during this time.
- They will weigh between 50-65 lbs (males) and 40-55 lbs (females).
- Expect more control and obedience as they start calming down, though exercise is still crucial.
Factors That Affect Australian Shepherd Growth
There are several key factors that directly impact the growth of your Australian Shepherd, from genetics to daily habits.
Genetics
Just like humans, genetics play a significant role in determining your Australian Shepherd’s final size. If both parents are large, chances are the puppy will grow to be larger as well. Conversely, if the parents are smaller or runts, the puppy may follow suit.
Gender
Gender differences can be seen in growth as well, with male Australian Shepherds generally being larger than females. Males tend to be taller and heavier, though individual cases may vary.
Diet
Diet is one of the most important factors affecting a dog’s growth. A well-balanced diet with the right nutrients will support healthy development.
- Include high-quality proteins and healthy fats.
- Ensure they get the right vitamins and minerals, especially for bones and joints.
- Avoid overfeeding to prevent obesity, which can lead to joint issues and other health problems.
Physical Activity
Australian Shepherds are a high-energy breed, and exercise is critical to their growth and overall health. Regular activity helps maintain a healthy weight and develops strong muscles.
- Aim for at least 1-2 hours of physical activity per day.
- Mix up activities like running, fetch, and agility training to keep their minds and bodies stimulated.
Spaying/Neutering
The age at which your Australian Shepherd is spayed or neutered can affect its growth. If done too early, it can impact bone development, but delaying the procedure can prevent certain health risks.
- Consult your vet to determine the best timing.
- Typically, spaying/neutering is recommended after the dog reaches 6 months.
General Health Condition
Lastly, general health is key to a dog’s growth. If your Australian Shepherd experiences health issues like infections, allergies, or other diseases, their growth could be stunted.
- Regular check-ups and vaccinations are critical.
- Keep an eye on any unusual signs like lack of appetite, weight loss, or lethargy.
At What Age Are Australian Shepherds Fully Grown?
Australian Shepherds are usually fully grown in height by 12 months, but they continue to fill out and gain muscle until they’re around 24 months old.
While they might look fully grown earlier, their physical maturity, including muscle development, continues into their second year.
At What Age Do Australian Shepherds Calm Down?
One of the most common questions new owners ask is, “When will my Australian Shepherd calm down?” Australian Shepherds typically start to mellow out around the age of 2-3 years.
However, this breed is known for its high energy, so “calming down” doesn’t mean they become inactive. It just means they tend to settle into a more predictable routine, especially with regular exercise and mental stimulation.
Signs of Healthy Growth in Australian Shepherds
It’s essential to monitor your Australian Shepherd’s development to ensure they are growing properly. Here are a few signs of healthy growth:
- Consistent weight gain and maintenance within the typical ranges.
- A shiny coat, strong teeth, and healthy gums.
- Energetic behavior and an eagerness to engage in physical activity.
- Strong, well-developed muscles with no signs of joint issues.
Tips for Ensuring Optimal Growth
To give your Australian Shepherd the best chance of growing up healthy and strong, follow these practical tips:
- Feed a balanced diet with the right mix of nutrients.
- Ensure regular veterinary visits for vaccinations and health checks.
- Provide plenty of physical activity to support muscle and joint health.
- Engage in mental exercises like puzzle toys or agility training to stimulate their brains.
Common Growth Concerns: What To Watch Out For
While most Australian Shepherds grow without any issues, it’s important to stay aware of potential problems. Some common growth concerns include:
- Hip dysplasia: A genetic condition that can cause joint pain and mobility issues.
- Obesity: Overfeeding or lack of exercise can lead to weight gain, which affects joints and overall health.
- Stunted growth: This can be due to malnutrition, illness, or improper care during the puppy stages.
If you notice any signs of abnormal growth, consult your vet for a thorough evaluation.
Conclusion
Raising an Australian Shepherd requires a careful balance of nutrition, exercise, and healthcare.
By understanding the growth chart and the factors that influence their development, you can ensure your dog grows up to be a healthy, happy, and active member of your family.
