The Silky Terrier's juvenile phase spans roughly from three months to around twelve months of age, though some individuals continue filling out until about eighteen months. During this period, the gangly, soft-coated puppy transforms into a recognizable miniature version of the adult dog. Growth in small breeds tends to happen faster relative to larger dogs, and most Silky Terriers reach close to their adult height by eight or nine months, with weight and muscle mass continuing to develop for a few months beyond that.
One of the most visible changes during this period is the coat transition. Silky Terrier puppies are born with shorter, softer fur that gradually gives way to the breed's characteristic long, glossy, silky coat. This transition can be uneven, with patches of adult coat growing in alongside tufts of puppy fluff. Regular brushing during this phase helps remove the shedding puppy coat, prevents mats from forming, and accustoms the dog to the grooming routine it will need throughout its life.
Teething is a significant milestone during the juvenile period. Baby teeth begin falling out around four months of age, replaced by the permanent adult set over the following two to three months. Small breeds like the Silky Terrier are prone to retained baby teeth, where deciduous teeth fail to fall out even after the adult teeth have erupted. Check the mouth regularly, and consult your veterinarian if you notice double rows of teeth, as retained teeth can cause crowding, misalignment, and dental disease.
Monitor your puppy's weight and body condition throughout this phase. While Silky Terriers are naturally slender and fine-boned, you should be able to feel the ribs with light pressure but not see them prominently. Overfeeding during the growth phase can stress developing joints and contribute to obesity, while underfeeding can impair proper development. Your veterinarian can help you establish ideal weight benchmarks for your individual puppy.