Mini roses are difficult to grow indoors. So after the buds have all bloomed out, we suggest that you take your plant outdoors and plant it in your yard or if that is not possible, transplant to a larger container and keep outdoors.
Roses need plenty of light to develop buds and flower properly. They will grow to a height of 2-3 feet tall. If you wish to keep it small, prune it back as you a regular rose bush after it is finished blooming.