I use a medium to course bark mix some with perlite, some without.
I water them about once every 2 weeks in winter and about once every 3 days in summer.
If it is extremely hot, and we get temperatures around the 90 to 105F for 3 weeks on end, with over night lows in the high eightees, then I will put the pots in saucers of water with diluted liquid fertilizer and the plants will suck up what they need. When the temperature drops a bit, then they will slow down with the sucking up of the water. Then I go back to the once every 3 days.
When in a rapid growing phase, I use liquid fertilizer every second week and a total flush through of clean water to flush the excess salts out after 4 weeks.
They are extremely hardy and I have had them growing inside, but they grow just as good outside providing they are not in direct sun. If you put them under shade cloth they will make you very happy.
Have a look at my cyms on my Web site and make up your own mind:
http://www.users.on.net/~op_ink/AD/Welcome.html.
Happy growing. They are easy to look after.