Greetings and congrats on the new azalea.
At this point it is really hard to tell if this is a Satsuki or not. Even when it flowers as there are so many, however t it blooms in May-June there is a good chance it is either a hybrid or a Satsuki. Leaf size really doesn’t indicate much as many non Satsuki are small leaved. Most garden azalea are hybrids or Kurumes… depending upon the location.
First thing recommend getting rid of the white rock. Instead bark if the media under is garden/peat/bark etc. This will give a homogeneous media that is easy tell when it’s time to water.
Next, please move away from the wall of the house. Azaleas are very susceptible to bounce back reflection. Would also rotate every week
Next please take out the drip watering system. Regular watering can cause root rot as azaleas vary with the season and location with their water needs.
Mostly we put new yardadory in straight medium bark for at least a year and cut these back to an optional area.
For example, of the recent yardadory (on right) we dug up last year was cut pack to two branches. These are the first year growth points. This year the tree will be potted in a large container and cut back further as needed, leaving some growth points.
View attachment 581546
This two trunk azalea (foreground) was also dug up last year. Note all the branch junctions were trimmed back to bifurcations (two branches) before planting in the ground. Likely will be potted soon, likely chapped back to balance the design, possibly separated, planting angle fixed, nebari tailored and more.
View attachment 581545
In your case there are multiple branches emanating from a point far down the trunk. Usually this would call for a chop closer to the nebari and grow out from there. Also to create taper and balance the design, similar to what the two examples above need.
btw: It really helps us help you if your approximate (within 20 miles ish) location and USDA Cold Hardiness Zone are on your icon. It saves time and message traffic. (To do so tap your icon atop the page - then account details - scroll down, enter these data and save).
This really would help in this instance as if you are in my 8b area, for example, advice would be different than the Bay Area 8b area.
Cheers
DSD sends