Patty, thank you for your reply! As for now, after heavily watering the rose with the hose, it doesn't take any water from the automatic watering ball for 2 days - so I do not water it more. The leaves do not turn any yellower, neither they seem to go sad. I also think that I have damaged some lower leaves when covering the pot with chicken net, so it might result it some of them drying off now just from it. So for now I'm waiting for the leaves to start looking sad to water again and get to know its new watering schedule. Hopefully it will get better :)

Yes, Patty's info is very good. As for watering, unfortunately yellowing leaves is a symptom of both over and under watering. Type of pot and potting soil, as well as weather conditions, can have an affect on how much and how often you need to water.

My first question is what type of pot and how big is it? Does it have drainage holes in the bottom?

Next is what kind of soil did you use? Is it real potting soil or did you use garden soil?

Now where is it? Full sun or partial shade?

A picture would be worth a thousand words!

Hello seil, thank you for your reply. Answering your questions:

1. It is a plastic 15 gallon pot with 8 drainage holes in the bottom (6 manufactured and 2 more I cut myself). Also there is a layer of volcanic rocks at the bottom to ensure better drainage

2. In this one I used universal potting soil from the garden shop mixed with slow-release special rose fertiliser (1/3 of the quantity specified in the instruction)

3. It is in full sun, and it's about 70-75 degrees here in daytime now. It has about 7-8 hours of full morning/daytime light a day

Here is the photo, but it's night now so with the flash the plant colour looks a little distorted, sorry(( and sorry for a flip-flop in the background, dogs must have brought it there))) any comment or advice would be highly appreciated)

Thank you for answering all my questions so well and congratulations on doing everything right! Your rose really looks quite healthy! I think maybe this may just be a case of a little transplant shock so the rose ditched some leaves it didn't feel it needed. Roses will stop feeding leaves they no longer need and they turn yellow and drop. That's natural. That way they can concentrate on supply food and water to the younger more needed growth. On older roses you often see them do this to older, inner and bottom leaves that are now too shaded by the top growth to produce food for the plant. I would suggest maybe taking out the watering bulb for a bit so that if it is too wet it can dry out a bit. May I ask what the wire mesh is for?

Dear seil, thank you for reassuring me about my rose :) it's my first one and I bought it without knowing anything on growing roses, had to catch up quickly on the internet after the purchase) hopefully it will be fine (as I also have another one to repot after blooming).

As for the water bulb, actually the rose hasn't touched it for 2 days (after I hosed it through), so it's just there in "emergency" case (is there such a case with roses?) as the temperatures really go high unexpectedly here during the day. But I will take it out tomorrow to see how it goes without it)

The mesh is the remedy from my dogs - they think they are great gardeners and tend to dig out soil from the pots (they share the terrace with roses), so I try to discourage them from it for no one was hurt :)

Do freshly replanted young plants need water-dilluted fertilising? Internet resources say contradictory things about it.. Help?

Usually people suggest you wait until after a new rose has bloomed once before fertilizing. Since you just potted it up with fresh soil there should be ample nutrients available for it until it blooms the first time.