hey phillip. i have 3 color forms of the twinkles. i repot mine every few years when they out grow their clay pots. i grow mine in a basic orchid mix of coco husks,terra cotta pellets and charcoal.and they thrive very well. they get watered once a week and are grown on my west facing windowsill indoors and bloom faithfully. i think 3 to 5 bulb clumps is a safe number for divisions to start off well. just make sure each clumps roots are healthy and also get a pot clip so that the divisions are secured tightly onto the medium. they do not like to be loose or wobble around. and pot size should be slightly bigger than the plant. other than that i think you should be fine. love twinkles. they smell wonderful