Yes, they're just like their big sisters for care. The pot should be good sized. Mini plants can get as large as the big ones sometimes depending on the variety. I'd say a 15 gallon pot with lots of drainage holes and good quality potting soil.

Hi seil. Thanks very much for your reply. Okay, so a 15 gal pot would be about what size in inches? I've got a ceramic pot about 16"x15" is that too small for a miniature rose? If it is too small, could I plant it in there now and later if necessary replant it into a larger pot?

That would be fine. Generally I have to repot eventually anyway because they get root bound. When that happens I take them out of the pots and trim the root balls by about half and repot them with fresh soil.

Thank you Seil for all your help. I really appreciate you for helping me with my mini-rose. I just purchased 3 more to plant in front of my peach roses. The one's I got are called 'carrot top'