Smooth Collie Puppies: Week-by-Week Growth & Care Guide
A complete week-by-week guide to raising smooth collie puppies — milestones, feeding, potty training, vaccinations, socialization, and first-year costs.
If you're preparing to bring home one of the smooth collie puppies you've been waiting for, you're in for a rewarding experience — and a demanding one. Smooth Collies are intelligent, sensitive, and energetic herding dogs that develop quickly and need structured guidance from day one. Unlike their rough-coated cousins, Smooth Collies have lower grooming demands but identical needs for mental stimulation, early socialization, and consistent positive-reinforcement training.
This guide walks you through every developmental stage from weeks 4 through 12 months, with breed-specific expectations, exact feeding portions, vaccination timing, and real cost figures so you can plan ahead with confidence.
Smooth Collie Puppy Milestones: Weeks 4 Through 12 Months
Smooth Collies mature at a moderate pace typical of medium-large herding breeds. They reach physical maturity around 14–18 months but hit key behavioral and developmental milestones on a fairly predictable timeline. Understanding these stages helps you set realistic expectations and intervene early if something seems off.
Weeks 4–8: The Litter Period
During this window, your smooth collie puppy is still with the breeder. Critical developments include:
- Week 4: Eyes and ears fully functional; puppies begin exploring outside the whelping box. Baby teeth are in. Puppies start lapping at gruel (puppy mush) alongside nursing.
- Week 5: Play-fighting intensifies — this is how puppies learn bite inhibition from littermates. Smooth collie puppies begin showing early herding instincts, such as circling or nipping at siblings' heels.
- Week 6: First deworming typically given (pyrantel pamoate). Puppies respond to their name and human voices. Breeder should begin short handling sessions.
- Week 7: Fear period begins (~7–9 weeks). Puppies become more cautious about novel stimuli. This is why the timing of the transition to a new home matters enormously.
- Week 8: Most responsible breeders release puppies at 8 weeks. Some hold smooth collie puppies until 9–10 weeks to allow additional littermate socialization, which is especially beneficial for herding breeds prone to sensitivity.
Weeks 8–12: The Homecoming & Bonding Phase
- Weight at 8 weeks: Typically 8–12 lb (3.6–5.4 kg) depending on sex and lineage.
- Weight at 12 weeks: Approximately 15–22 lb (6.8–10 kg).
- Smooth collie puppies at this age are highly receptive to learning and bonding. They follow owners room to room and start showing the "shadow" behavior the breed is known for.
- First fear period continues through ~9 weeks. Avoid overwhelming experiences — loud parties, long car trips, or harsh corrections can create lasting negative associations in this sensitive breed.
- Attention span is 5–10 minutes maximum per training session.
Weeks 12–16: Growing Confidence & Testing Boundaries
- Weight at 16 weeks: Roughly 22–30 lb (10–13.6 kg).
- Puppies start testing rules — jumping up, stealing items, ignoring recalls they previously knew. This is normal developmental boundary-testing, not defiance.
- Herding behaviors become more pronounced: ankle-nipping, chasing children or cats, staring intently at moving objects.
- Second fear period may occur around 12–14 weeks. Keep socialization positive and never force a frightened puppy into a situation.
Weeks 16–24 (4–6 Months): The Adolescent Transition
- Weight at 6 months: 30–40 lb (13.6–18.1 kg), approaching 60–70% of adult weight.
- Teething peaks. Chewing intensity increases dramatically.
- Smooth collie puppies may show early signs of wariness toward strangers if socialization has been insufficient. This breed's natural reserve with unfamiliar people can harden into shyness without continued positive exposure.
- Prey drive and herding instinct fully emerge — expect chasing of squirrels, bikes, and running children.
Months 6–12: Adolescence
- Weight at 12 months: Males 45–65 lb (20.4–29.5 kg); Females 40–55 lb (18.1–24.9 kg). AKC breed standard lists males at 60–75 lb and females at 50–65 lb at full maturity.
- Adolescent regression is common: previously reliable cues may be "forgotten." Stay consistent with training and avoid punishment-based methods.
- Sexual maturity: females may have first heat cycle between 6–10 months. Discuss spay/neuter timing with your veterinarian — current evidence suggests waiting until after growth plates close (12–18 months for medium-large breeds) may reduce orthopedic risk.
- Mental maturity lags behind physical growth. Expect puppy-like behavior through 18–24 months.
Feeding Schedule for Smooth Collie Puppies
Smooth Collies are active, medium-large dogs that need a diet formulated for large-breed puppies to support controlled growth and reduce the risk of developmental orthopedic diseases like hip dysplasia. Look for an AAFCO statement indicating the food is appropriate for "growth" or "all life stages," and specifically one that meets the AAFCO nutrient profiles for large-breed puppy growth (calcium restricted to ≤1.5% on a dry matter basis).
Expected adult weight for Smooth Collies is 50–75 lb (22.7–34 kg), which places them right at the threshold where large-breed puppy formulas are recommended. Consult your veterinarian on which formulation is best for your individual puppy's growth curve.
| Age | Meals Per Day | Approximate Daily Amount (Dry Kibble) | Notes |
|---|---|---|---|
| 8–12 weeks | 3–4 | 1–1.5 cups/day | Soak kibble in warm water if puppy struggles to chew. Feed at 7 AM, 12 PM, 5 PM, and optionally 9 PM. |
| 12–16 weeks | 3 | 1.5–2.25 cups/day | Transition to dry kibble. Monitor body condition score (BCS) — ribs should be palpable but not visible. |
| 4–6 months | 2–3 | 2–3 cups/day | Drop to 2 meals by 6 months. Increase if puppy is very active or in structured training/sport classes. |
| 6–12 months | 2 | 2.5–3.5 cups/day | Gradually transition to adult formula between 12–14 months. Adjust based on activity and BCS. |
Cup measurements vary by kibble brand and caloric density. Always check the feeding chart on your specific food and adjust based on your puppy's body condition, not just weight. A smooth collie puppy at a healthy weight should have a visible waist when viewed from above and an abdominal tuck when viewed from the side.
Vaccination Schedule for Smooth Collie Puppies
Smooth collie puppies follow the standard core vaccination protocol recommended by the American Veterinary Medical Association (AVMA) and the AAHA Canine Vaccination Guidelines. Your vet may adjust timing based on local disease prevalence and your puppy's risk factors.
| Age | Vaccines Given | Notes |
|---|---|---|
| 6–8 weeks | DHPP (Distemper, Hepatitis/Adenovirus, Parainfluenza, Parvovirus) — 1st dose | Often given by breeder before pickup. Confirm with documentation. |
| 10–12 weeks | DHPP — 2nd dose; Bordetella (optional, based on exposure risk) | Bordetella recommended if attending puppy socialization classes or boarding. |
| 14–16 weeks | DHPP — 3rd (final puppy) dose; Rabies (required by law in most US states) | Puppy is not fully protected until 2 weeks after this final DHPP dose. |
| 12–16 months | DHPP booster; Rabies booster (1-year or 3-year depending on vaccine type) | After this, DHPP is typically given every 3 years per AAHA guidelines. |
Non-core vaccines to discuss with your vet: Leptospirosis (recommended in areas with wildlife exposure or standing water), Lyme disease (tick-endemic regions), and Canine Influenza (H3N2/H3N8, recommended for dogs in group settings). Smooth Collies that will participate in herding trials, agility, or dog sports may benefit from broader vaccine coverage.
Socialization Window: Weeks 3–14
The primary socialization period for all puppies closes between 12–14 weeks of age, according to the Merck Veterinary Manual. For smooth collie puppies — a breed with a natural tendency toward wariness with strangers — this window is especially critical. Inadequate socialization during this period is the leading behavioral risk factor for fear-based reactivity and shyness in adult Smooth Collies.
Because your puppy won't be fully vaccinated until ~16 weeks, you need to balance socialization with disease risk. The AVMA and the American Veterinary Society of Animal Behavior (AVSAB) both recommend that the benefits of early socialization outweigh the risks of parvovirus exposure when done carefully — meaning controlled environments, not dog parks.
Potty Training Timeline & Troubleshooting
Smooth collie puppies are generally quick to house-train thanks to their intelligence and eagerness to please. However, "quick" in puppy terms still means weeks, not days. Here's a realistic timeline:
| Age | Expected Bladder Control | Outing Frequency | Accident Expectation |
|---|---|---|---|
| 8–10 weeks | 30–45 minutes max | Every 30–60 min during day; 1–2 overnight trips | Frequent — 3–6 accidents/day is normal |
| 10–14 weeks | 1–1.5 hours | Every 1–2 hours; 1 overnight trip | Decreasing — 1–3 accidents/day |
| 14–20 weeks | 2–3 hours | Every 2–3 hours; overnight sleeping through | Rare — 0–1 per day, usually after schedule disruption |
| 5–6 months | 3–4 hours | 4–5 scheduled outings/day | Mostly reliable with occasional setbacks |
| 6–8 months | 4–6 hours | 3–4 outings/day | Fully trained for most puppies; adolescent regression possible |
When will my puppy be fully potty trained? Most smooth collie puppies are reliably house-trained between 5–7 months of age with consistent scheduling. Some individuals, particularly smaller females, may take until 8–9 months. If accidents persist past 6 months despite consistent management, consult your veterinarian to rule out urinary tract infection or anatomical issues.
Troubleshooting common issues:
- Submissive/excitement urination: Common in smooth collie puppies due to their sensitive temperament. Avoid leaning over or reaching toward the puppy when greeting. Greet calmly at their level, ignore until they're settled, then reward calm behavior.
- Crate accidents overnight: If the crate is too large, the puppy may eliminate in one corner and sleep in another. Use a divider to size the crate so the puppy can stand, turn, and lie down but not much more.
- Marking behavior (6+ months): Intact males may begin lifting their leg and marking indoors. Spay/neuter discussion with your vet and management (belly bands, supervision) help during adolescence.
Crate Training Progression & Time Limits
Smooth Collies generally adapt well to crate training because they're den-oriented dogs that seek enclosed, safe spaces. The crate should be a positive retreat, never a punishment.
Crate size: For an adult Smooth Collie, a 42-inch crate is typically appropriate. For a puppy, use a divider insert in a 42-inch crate and expand as the puppy grows. The puppy should be able to stand up without ducking, turn around freely, and lie down stretched out.
| Puppy Age | Max Crate Time (Daytime) | Max Crate Time (Overnight) | Training Focus |
|---|---|---|---|
| 8–10 weeks | 30–60 minutes | 2–3 hours (plus potty break) | Build positive association: feed meals in crate, use stuffed KONG, door open initially |
| 10–14 weeks | 1–2 hours | 3–4 hours (plus potty break) | Close door for short periods while you're home; practice quiet settling |
| 14–20 weeks | 2–3 hours | 5–6 hours | Begin brief absences from the house; work up to 30 minutes alone |
| 5–6 months | 3–4 hours | 7–8 hours | Puppy should enter crate voluntarily; covered crate may help with settling |
| 6–12 months | 4–5 hours | 8 hours | Transition to free-roaming when reliable; keep crate available as a retreat |
Whining in the crate: Smooth collie puppies are vocal. If your puppy whines after being settled and recently toileted, wait for a brief pause in the whining (even 3 seconds) before opening the crate. This teaches that quiet, not noise, opens the door. If whining escalates to panic (screaming, throwing themselves against the crate), the puppy may need a slower introduction — go back to shorter durations and higher-value rewards inside the crate.
Teething Timeline & Relief Strategies
Smooth collie puppies go through two teething phases. Understanding both helps you protect your belongings and your puppy's comfort.
Phase 1 — Baby teeth eruption (3–6 weeks): 28 deciduous teeth come in while the puppy is still with the breeder. You likely won't deal with this phase directly.
Phase 2 — Adult teeth eruption (3–6 months): This is the phase that affects you. The 42 adult teeth push out the baby teeth, causing gum soreness, increased chewing, and sometimes mild bleeding.
| Age | What's Happening | What to Do |
|---|---|---|
| 3–4 months | Incisors begin loosening; chewing intensity increases | Provide frozen washcloths (twist, wet, freeze), rubber chew toys like KONG Classic (puppy size) |
| 4–5 months | Canines and premolars erupting; peak discomfort | Rotate frozen treats (banana slices, carrot sticks). Avoid hard nylon bones or antlers that can fracture developing teeth. |
| 5–6 months | Molars erupting; most baby teeth should be shed | Check for retained deciduous teeth (baby teeth that haven't fallen out alongside adult teeth). Report to your vet — retained teeth are common in smaller lines and can cause crowding. |
| 6–7 months | All 42 adult teeth should be in | Begin toothbrushing routine with enzymatic dog toothpaste. Schedule dental check with your vet. |
Safe chew recommendations: KONG Puppy (pink/blue rubber), Nylabone Puppy Chew (soft flex variety), Benebone Puppy (softer formula), frozen carrot sticks, and bully sticks (supervised only — remove when small enough to choke on). Avoid rawhide, cooked bones, ice cubes (too hard for developing teeth), and any chew smaller than the puppy's muzzle.
Common Smooth Collie Puppy Problems & Solutions
Every breed has its characteristic puppy challenges. Here are the issues most commonly reported by smooth collie puppy owners, along with force-free, positive-reinforcement solutions.
Puppy Biting & Nipping
Smooth collie puppies have strong herding instincts that manifest as nipping at ankles, hands, and moving children. This is breed-typical behavior, not aggression, but it needs to be redirected early.
Solution:
- Redirect: When teeth touch skin, say "oops" calmly and immediately offer a chew toy. Reward enthusiastically when the puppy mouths the toy instead.
- Withdraw attention: If nipping continues, stand up, cross your arms, and be still for 10–15 seconds (a "time-out" from interaction). Resume play when the puppy is calm.
- Teach "leave it": Start with treats on the floor, progress to hands and clothing. This cue is invaluable for managing herding behavior.
- Manage the environment: Keep a drag line (lightweight leash) on the puppy during high-excitement times so you can gently redirect without grabbing.
- Provide appropriate outlets: Herding balls (like the Jolly Ball), flirt pole sessions, and structured recall games channel the herding drive constructively.
Excessive Chewing
Smooth collie puppies are mouthy dogs. Combined with the teething phase, this means significant chewing from 3–8 months.
Solution: Puppy-proof your home (crate or exercise pen when unsupervised), provide 5–7 approved chew items rotated regularly to maintain novelty, and ensure the puppy is getting adequate physical exercise (30–60 minutes daily for 4–6 month olds) and mental enrichment (snuffle mats, frozen KONGs, training sessions).
Separation Distress & Whining
Smooth Collies bond deeply with their people and are prone to separation anxiety if not gradually taught to be alone. This breed is not well-suited to owners who are away 8+ hours daily.
Solution: Practice departures starting in week 1 — leave for 30 seconds, return calmly. Gradually increase duration. Never make departures or arrivals emotional. Provide a long-lasting treat (stuffed KONG, lick mat) when you leave. If the puppy panics (destructive behavior, non-stop vocalization, house-soiling only when alone), consult a certified professional dog trainer or veterinary behaviorist early — separation anxiety worsens without intervention.
Sensitivity to Correction
Smooth Collies are notably sensitive dogs. Harsh corrections, yelling, or physical punishment cause this breed to shut down rather than learn. They may become avoidant, fearful, or develop a "soft" temperament that makes training harder.
Solution: Use exclusively positive reinforcement methods — treats, toys, praise, and life rewards (door opening, leash going on). If you're frustrated, end the training session and try again later. A certified force-free trainer (look for CCPDT or IAABC credentials) can help if you're stuck.
First-Year Cost Breakdown for a Smooth Collie Puppy
Budgeting accurately for your smooth collie puppy's first year prevents surprises. The following estimates reflect 2025–2026 US pricing ranges based on veterinary cost surveys and product pricing.
| Category | Low Estimate | Mid Estimate | High Estimate | Details |
|---|---|---|---|---|
| Puppy Purchase | $800 | $1,500 | $2,500 | From AKC-registered responsible breeder with health testing. Adoption/rescue fees typically $200–$500. |
| Veterinary (First Year) | $600 | $900 | $1,400 | 3 puppy wellness visits, DHPP series, rabies, fecal tests, heartworm prevention, spay/neuter. |
| Food & Treats | $400 | $600 | $900 | Quality large-breed puppy kibble plus training treats and enrichment items. |
| Supplies | $300 | $500 | $800 | Crate, bed, leash/harness, bowls, toys, grooming tools, puppy gates, chew items. |
| Training | $150 | $400 | $800 | Puppy socialization class, basic manners group class. Private sessions cost $80–$150/hour. |
| Pet Insurance | $360 | $540 | $720 | $30–$60/month for accident/illness plan. Enroll before pre-existing conditions develop. |
| Total First Year | $2,610 | $4,440 | $7,120 | Excluding emergency vet care. Maintain $1,000–$2,000 emergency fund. |
Frequently Asked Questions About Smooth Collie Puppies
When should I bring my smooth collie puppy home?
Most responsible breeders release smooth collie puppies at 8 weeks of age. Some breeders hold puppies until 9–10 weeks, particularly if the puppy is going to a home with young children or other pets, as the extra littermate time improves bite inhibition and social skills. Bringing a puppy home before 8 weeks is not recommended — puppies removed from the litter too early have higher rates of behavioral problems including poor bite inhibition, fear, and difficulty with other dogs. The AKC recommends 8–12 weeks as the ideal window.
How often should I feed my smooth collie puppy at each age?
Feed 3–4 meals per day from 8–12 weeks, drop to 3 meals from 12–16 weeks, and transition to 2 meals per day by 6 months. See the detailed feeding schedule table above for portion sizes. Always divide the daily total across meals rather than feeding the full amount at once.
When can my smooth collie puppy go outside and meet other dogs?
Your puppy can go outside in your own yard (if it's not a high-traffic dog area) immediately after coming home. For public spaces, wait until 2 weeks after the final DHPP vaccine at 14–16 weeks — typically around 18 weeks — before visiting dog parks, pet stores, or areas with unknown dog traffic. However, controlled socialization with known, fully vaccinated dogs in private settings should begin immediately at 8 weeks. Puppy socialization classes that require proof of first vaccination and maintain sanitized environments are generally safe starting at 10 weeks, per AVSAB recommendations.
How do I stop my smooth collie puppy from biting and nipping?
Redirect to appropriate chew toys every time teeth touch skin, withdraw attention for 10–15 seconds if nipping persists, and teach "leave it" and "drop it" cues early. Provide herding-appropriate outlets like herding balls and flirt poles. Never use physical punishment — it damages the trust-based bond this sensitive breed needs. Consistent redirection typically reduces nipping significantly by 5–6 months as adult teeth come in and the puppy matures. If nipping intensifies rather than decreases after 6 months, consult a certified professional dog trainer.
What vaccines does my smooth collie puppy need and when?
Core vaccines include the DHPP series (given at 6–8, 10–12, and 14–16 weeks) and rabies (given at 14–16 weeks, then boosted at 1 year). Non-core vaccines like Bordetella, Leptospirosis, Lyme, and Canine Influenza depend on your geographic area and your puppy's lifestyle. See the vaccination table above for the full schedule, and discuss non-core options with your veterinarian at your puppy's first wellness visit.
Are smooth collie puppies good with children?
Smooth Collies are generally excellent family dogs — gentle, playful, and patient. However, their herding instinct means smooth collie puppies may try to herd running children by nipping at heels. Supervise all interactions between puppies and children under 10, teach children to respect the puppy's crate and sleep time, and redirect herding behavior to appropriate games. Smooth Collies raised with children typically become devoted family companions.
- Adult weight: Males 60–75 lb (27–34 kg) | Females 50–65 lb (23–29 kg)
- Lifespan: 12–14 years
- Exercise needs (adult): 60–90 minutes daily
- Grooming: Weekly brushing, minimal compared to Rough Collie
- Key health screenings: MDR1 gene test, hip evaluation (OFA/PennHIP), eye exam (CERF/CAER), PRA DNA test
- Training style: Positive reinforcement only — this breed is highly sensitive
Marcus Aldridge
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