How to grow potted rose plant bought from nursery shop?

First day brought back from Cameron Highlands

Have you ever bought some potted rose plants or other plants when visiting Cameron Highlands, or from any other floral nursery shop? How many of you have successfully grow the plants you brought back home since then?

I was so excited that my friend bought me 4 pots of rose plants from Cameron Highlands. Each pot has at least 10-15 flowers and buds. I treat these plants like my babies, I nurture them with lots of efforts and love. I make sure I'm the only one who does the watering but not my helper nor my children. For the first few days, I left these plants indoor to avoid "transplanting shock" as these plants have just came from a rather cooling climate.  Every morning, I would take them out for morning sun. With my diligent care and unconditioned love, I expect the roses will grow and eventually more flowering to come.

However, after the first week, 2 pots started to show wilting instead of growing :(

After 1 week, leaves and flower buds started to wilt, cut out the dried leaves and stems to prevent further
dehydrating process

The wilting process was too fast that within 3-5 days, one pot almost considered dead. The change of climate has made the plants to dry out and dehydrate. I know I have to stop the dehydration in order to save the plant.

What I did to the remaining 3 pots was, I cut out all the dried leaves and stems as well as the wilting flowers and buds. As you know, the dehydrating process is like a disease, it spreads so fast to the other part of the plants. 

I managed to save the plants, at 2nd week, new leaves started forming.

2nd week - plants show sign of growing

6th week - new healthy plant and buds established after transferred to ground