so new to gardening roses! | New Gardeners | Commercial Hydroponics farming

hi all,

i am new to gardening and to this blog/forum. i have been searching the internet for tips on taking care of my newly acquired rose bushes! these were grown in ground and now have been transferred to 2 different pots for me.  

well as you all know, its winter time in Gurgaon and from whatever i have read and heard, this isnt the season for roses but then people still grow them, dont they? i was wondering if i could get general tips on growing them to their full potential. Just to let you know, these are placed in my balcony which gets good 6-8 hours of sunlight on most days (except when its hazy or cloudy). I am not sure whether how much i am watering them is enough or more or simply less. I am not so badly concerned just yet except the leaves of one of the bushes have started yellowing but i havent lost hope cause its got a bud about to bloom big and nice... but then should i be concerned already? would the yellowing of the leaves be detrimental to this blooms progress?!? too many questions? maybe i will put in some more soon 🙂 

thanks

d.a.