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🐕

Border Collie

medium

Premier herding athletes famed for their intelligence and focus.

Keep lineage notes tidy with GenogramCraft right alongside your growth tracking.

Adult Weight
30-55 lbs
Lifespan
12-15 years
Temperament
Intense, Smart, Energetic
Exercise
120 minutes of high-intensity work and training
Energy Level
Trainability
Shedding
Family Friendly

Growth Chart

Track Your Puppy

Loading growth chart...
AgeWeight RangeAverage
0 weeks
0 months
0 - 0 lbs0 lbs
4 weeks
0 months
4 - 7 lbs5 lbs
8 weeks
1 month
7 - 14 lbs10 lbs
12 weeks
2 months
11 - 20 lbs16 lbs
16 weeks
3 months
15 - 27 lbs21 lbs
20 weeks
4 months
18 - 34 lbs26 lbs
24 weeks
5 months
22 - 41 lbs31 lbs
28 weeks
6 months
24 - 45 lbs35 lbs
32 weeks
7 months
25 - 47 lbs36 lbs
36 weeks
8 months
26 - 48 lbs37 lbs
40 weeks
9 months
27 - 50 lbs39 lbs
44 weeks
10 months
28 - 52 lbs40 lbs
48 weeks
11 months
29 - 53 lbs41 lbs
52 weeks
12 months
30 - 55 lbs43 lbs

Developmental Milestones

0-2 weeks

Physical Development
Eyes and ears closed, depends on mother
Behavioral Development
Limited movement, nursing

2-4 weeks

Physical Development
Eyes and ears open, teeth begin to emerge
Behavioral Development
Starts walking, exploring

4-8 weeks

Physical Development
Weaning begins, rapid growth
Behavioral Development
Socialization with littermates, play behavior

8-12 weeks

Physical Development
Baby teeth fully in, growth continues
Behavioral Development
Critical socialization period, fear imprint period

3-6 months

Physical Development
Adult teeth coming in, puberty begins
Behavioral Development
Testing boundaries, second fear period

6-12 months

Physical Development
Sexual maturity, growth slowing
Behavioral Development
Adolescence, energy peaks

12-18 months

Physical Development
Reaches adult size, growth plates close
Behavioral Development
Mental maturity developing

Age Progression Gallery

See how Border Collies develop from puppies to adults

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8 Weeks

Puppy - Early socialization stage

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3 Months

Growing fast - Learning phase

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6 Months

Adolescent - Energetic stage

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Adult

Full grown - Mature and stable

Note: Photos shown are representative placeholders. Individual dogs may vary in appearance based on genetics, diet, and care.

Care Requirements

Grooming

Moderate – weekly brushing, more during shedding

Exercise

120 minutes of high-intensity work and training

Common Health Issues

  • • Collie eye anomaly
  • • Epilepsy
  • • Hip dysplasia