Name = nice purchase lol!!
Awesome form and lovely flower.
looks like an obesum seedling to me'
More interesting to me is the white cacti or succulent in the background
You have quite the beautiful setup there my friend.
Yeah ... OH yeah! ... you don't even want to open up the can of worms about dealing with the local zoning board here. What a nightmare ... the bunch of maroons!
Now, I have to fight the town assessor's office because they raised my taxes to TAX me for it as living space as opposed to non-living space!! Technically, greenhouses are non-living space, apparently ... They decided to change this status on me after 15 years.
Here's a video I did on hard pruning them. In your area, you'll probably only get away with once per year, and this is about as late as you'd want to do it. It takes about 8 weeks to fully flush and flower after hard pruning, so I wouldn't do it after August 1st, as your temps will start to be getting to cool by October.
Here I do it to some 3x per year. Mid March, end of June, and mid August.
Looking closer at your picture, I find it kind of interesting. Many multiple branches from the caudex is unusual from A. obesum varieties. It typically has one or 2 primary, then go on to branch further and further up those 2 primaries.
Looking at yours, it appears that it may have been a grafted variety at one time, judging by the scar in the center, and the graft didn't take. I've seen this more than once at the box stores.
Since you do have nice base branches, and this is just how I personally like to keep them, I'd cut each main branch back to about 4 inches. They may put off 3-4 branches base on their current size. Younger ones will usually develop 2 branches per cut.
I am sorry but I have no idea. But the flowers look pretty "ordinary A. obesum" to me. Adeniums with rootstocks are quite rare around here (in Denmark, that is), so I'm easy to impress.;-) I like the "ordinary".
I just picked up 4 of these about an hour north of here. On estimate, they are about 15 years old, and more than 4 feet tall. One I'll use for a multi-colored grafting project, and a couple of others I'll use as displays for when we do shows.