In article ,
"Tony D" writes:
|
| Am I correct that there are several varieties of these plants

Species, actually, but yes.

| Which one's can be grown in the garden and left out all year

Half a dozen species.

| And are they an easy plant to find in garden centers or are they a more
| specialist plant

A. macrophylla (also called A. durior) is a little bit specialist;
the others are definitely specialist.

I grow that one, but have failed to get it to flower.


Regards,
Nick Maclaren.