Regards grafted adeniums...
Initially, the vigor of the seedling root stock gives very healthy growth to the scions. But eventually the scion takes over and this impedes caudex growth. The caudex may still fatten up a little over time, but not appreciably so.
![Thumb of 2016-03-19/Rainbow/aa0a0a](/pics/2016-03-19/Rainbow/aa0a0a-lb.jpg)
I bought these two grafted adeniums locally. It is apparent that the previous owners had lifted the caudex and exposed the roots...not very attractive. I had transplanted them into panterra bowls but planted at the same soil depth they were in. I was concerned that if I covered the roots (after being exposed for years) it would cause a problem for the plants.
Oh-oh! After staring at the skinny caudexes, I'm wondering now whether the scions were grafted unto rooted cuttings instead of seedling root stocks.
![Whistling Whistling](/i/s/whistling.gif)
I read somewhere that this is sometimes done when there are no seedling root stocks available.
![Thumb of 2016-03-19/Rainbow/86b6da](/pics/2016-03-19/Rainbow/86b6da-lb.jpg)
Anyway, here is a picture of grafted adeniums that I purchased from Taiwan last year. These are definitely seedling root stocks.
![Thumb of 2016-04-13/Rainbow/7105f7](/pics/2016-04-13/Rainbow/7105f7-lb.jpg)
And here's a picture of one of the grafted trees. As you can see, there is very little fattening of the caudex after 7 months...but the scion has grown vigorously.