Nice buy there.

What you need to do is plant it in your garden asap or it has little chance of survival. You can plant as long as the ground there isnt frozen. They make poor houseplants, needing very full sunlight, humidity, moist soil & they get spider mites very easily. Give it a shower once a week. You dont need to prune it til next year if you're planting outside. Even then just a light trimming is fine for minis. Make sure the middle is not crowded to prevent disease. You may need to spray with fungicide in cases of mildew, blackspot etc. Minis are quite hardy. Keep well watered. Good luck with your new plant!

Jen

Hi. The thread at the link below contains links to three other threads that discuss these minis. Jen's right, you need to get it outside ASAP, they are really not well suited for growing inside. Hope these help!

Here is a link that might be useful: Help! My indoor mini roses keep dying!

Thanks for the advice but I live in an apartment and don't have a garden.
As far as humidity goes I grow almost nothing but high humidity plants (Drosera, Pinguicula, Nepenthes, etc) and have never had a problem with humidity levels. All my other plants are also strictly full sun plants and I live in a south facing apartment.
So theres no way it will survive long enough to go out on the balcony in spring?

yes it will survive long enough to place out on your balcony but repot it and place it with the other full sun plants until you can take it outside.

I keep my minis indoors. I have one of those "uv"type bulbs in my lamp and place them under it for about 6 hours daily.
for fungus,use a mixture of about 1 half tsp. baking soda,1tsp. oil soap in a spray bottle of plain water and spray soil and all every 2 weeks or so. keep them moist,not wet and every now and then, place a warm fan facing it from across the room (6 feet or so ) to promote the warm temps. that roses like and circulate the air around it. Good Luck