I have a Haem. humilis humilis received from BX203 May 2009. It has bloomed twice now, 2013 and 2014. At this moment the leaves are drooping a few inches over the sides of its 6" terra-cotta pot. It should now probably be potted up into a 10" or 12" pot. Question 1 - when to pot? Question 2 - what size, 10" or 12"? Thanks, Stephen Putman