When does a Ragamuffin stop growing?

Ragamuffins stop growing at four years old. While they typically reach their full height around 12 to 16 months, they’ll continue to develop muscle mass until around their fourth birthday. 

Factors that influence their growth include genetics, diet, and overall health. Providing them with a balanced and nutritious diet is essential to support their growth and development. You should keep them on kitten food until they are around 12 months old, as this specialized diet provides the extra nutrients and calories they need during their rapid growth phase. After that, you can gradually transition them to adult cat food to maintain their health as they continue to grow and develop into their full size and maturity slowly.