I know most of you are thinking I want to kill one! Not the case here, I want to plant one and I am well aware of it's potentially invasive nature in the US.However this is Japan and many people grow them even in small gardens without any great problems.
The trumpet vine is one of the the joys of summer here. My question is,really how much sun does it need to thive and so on, is planting position important relating to it's health and not it's habit, Moisture and soil requirements ect. Please no lectures on why not to plant one. Positive knowledgeable answers is what I'm looking for here.