In article ,
Rod Craddock wrote:

Have you looked at the roots. Just guessing but I would say it's potbound.
They fill the pot very quickly and in that sense aren't great plants for
growing in containers unless you've got lots of room and big containers.

Does that apply to Mandevillia boliviana, too? Mine is doing quite
well in a 12" pot.

It is in VERY well-drained compost and not watered all that often.


Regards,
Nick Maclaren.