I do not think that 'Gritty Mix' is a bad mix to use. It may come down to what is in the mix, but the theory behind the use of this mix is very good. Many of us do not have to water as frequently during cooler weather and more often when hot in summer months. It is not practical or beneficial to the Adeniums to be transplanted multiple times each year.
Any perched water in combination with cold temperatures is surely death to Adeniums.
What it comes down to is that each of us has to grow these trees in what is available to us where we reside. What ever works for us. Unfortunately, when we are addressing people on a forum site where ever, we have to remain responsible in what we chose to use based on information given. It is impossible for anyone to give absolute advice when we do not experience each other's climate or conditions available.
I am not sold on Turface and have experienced issues with it. I cannot use it for reasons mentioned and have switched to Pumice.
For me, the Gritty type mix with my own additives works very well. This is based on my trials and assistance by many.
Truthfully it should be called "Free Draining mix". The majority of plants need good aeration to the soil in which they grow.
Rick
