Long response… sorry.
It’s a likely response. However a landscape azalea’s response to hard pruning is sometimes different than potted Satsuki azaleas. Don’t know why, except for the data Peter Warren shared about the new cultivars (from sports?) over time are increasingly weaker.
The data that I first noted certain cultivars response to hard pruning was varied was found in Callahan’s book, based on data from Gondo’s work in Northern California. In it Callaham noted certain satsuki’s that had issues backbudding to hard pruning.. Research shows sports of these family do likewise.
Experiments in our yard showed this to be valid, yet somewhat random in a few cultivar cases…. Backbud in some cases and die off in others… on the same plant.
This aside, looking back at your pruning, it appeared to all be back to green growth, so there is really not techinique issue that caused dominant flowers to appear.
Hard cutbacks aren’t going to change this situation.
Based upon the data, this Satsuki has five flower variations. These are solid white, red, and pink flowers and white with red splotches and red with white splotches. Possibly
@Glaucus might recognize this cultivar.
Cutting to twos doesn’t inherently induce backbudding a lot.
Another technique to help backbudding besides cutting back hard is to remove the flowers and cut across the base, leaving just a bit of green growth.
Here is an experiment where this was done. Once back budding occurred, the branch was cut further back. This particular cultivar responded really well. Not all do so.
Long story short. Mark the all reds now with twist ties etc. Decide whether to take these off or cut back to old wood, or through the base. After flowers are removed experiment on this cultivar with both techniques
Also would mark the white with red flowers and propagate some of the branchlets on these.
Since cutting this twos causes the branch to get longer, would decide if to cut to twos, offered through the base systematically, depending upon the situation.
[sQUOTE="nurvbonsai, post: 1185748, member: 57849"]
Just chiming in to ask if this should work for this starter I got a few weeks ago.
[/QUOTE]
Miracid or Miracle grow is a decent fertilizer for azaleas. Please use 1/3 strength to start, then 1/2 strength if all ok every 2-3 weeks, but not on hot days.
Cheers
DSD sends