The grooming requirements of a Boston Terrier Pekingese mix usually depend on their coat type, which can inherit features from either parent breed. Regular brushing and grooming are crucial to maintain a healthy coat and prevent matting if they inherit the Pekingese's long double coat. It's important to pay attention to the area around their eyes and ears and trim their nails regularly. Additionally, dental hygiene, including brushing and dental chews, will keep your dog's teeth clean and healthy.