Whoa on the repotting now!
That’s something you’ll want to do in the late winter early spring, depending where in California your reside. This allows the tree the entire year to recover.
(BTW: Please amend your loacation data to say approximately where in California your are - it makes a big difference on how this azalea needs to be treated. The zone data is helpful, but not entirely in your case.)
A couple observations
Whomever repotted last time seems to have shifted the tree upright. This put the roots on the right of the photos out of the media. That’s not good. They also potted the tree a bit too high. Both should be corrected in your repot. If you can’t exactly match the media (bonsai soil) a complete root wash should be done then too. (Personally I’d root wash and put the tree in straight Kanuma.)
This will put the tree back on a bit more of a slant.
Something you can do right now is try to reduce the branches in the top hamper…. this will help the tree get sun into its interior. Yet I’m not comfortable walking you through this by message. In this case I’d recommend finding a nearby club satsuki person or a professional to help walk you through this procedure.
In the meantime there is something else you can do to help set the roots right yourself and build up the health of the tree. You’ll need some New Zealand long fiber spaghnum moss. One Popular brand is Besgrow. You will also need some media. In this case small kanuma would work. Next:
The job is to bring up the surface all around the tree roots, especially the uptilted side, to a new level. Also to ‘activate’ the roots so they push more new roots. This will spur growth and help the tree acclimate to the new angle well before the repot is done. Then when the repot is done the tree will be already used to the new level..
Here’s an example tree of mine that was done a couple weeks ago that needs the root area built up as it’s planted too high.
The tree will end up looking sort of like this photo where the satsuki roots built up with packed cross wise Sphagnum
One can see the area by right where the mass is being slowly built up to match where the new surface level is going to be on the next repot. The front area still needs work.
Here’s the steps:
Soak the moss overnight. You’ll need a goodly amount on the high side and others. Better too much then too little. One can always dry out the excess and reuse later. When that’s done…
Take a knife and lightly scratch the sides and underside of the roots all around where the new surface level will be. The scratches should show green inside the bark. Once you do this you’ll need to get right to work.
1. Scratch the surface of the soil in the area you will be working.
2. Lay long fibers of moss to make the first build up layer all around the tree.
3. Next, cut more long fibers into short pieces. Lay these short fibers cross wise to interlace over the long pieces already laid.
4. Then,y if you have media push it in between the fibers to help build up the layer. This looks like the below example.
5. Repeat steps 2-4 until the root area all around the tree is built up to the level desired.
6. Keep moist. I mist this area between watering until the moss turns solid green, then water normally.
7. A final step that would help is to cover the entire moss and soil surface with Yamagoke - Mountain Moss. That’s the really green moss on the example tree.
Bonsai Tonight sells this (you need one bag only) and Kanuma. Just wet it overnight before applying and use tweezers to tuck the moss into the side of the pot and then backfill over the media and Sphagnum.
… and that’s that! If this is too much for you, show these instructions to a bonsaiclub member. Good Luck!
cheers
DSD sends