i suspect it's genetic; i have some that grow straight up quite
nicely, then others that crawl sideways regardless of what i do. i've
learned to live with it and let 'em do their thing. (well, except
when they're trying to climb into someone else's pot, or stand on
their heads; one of al's bette's mary lucies is doing that at the
moment. i may have to tie it into its pot. i have an assortment of
rocks around to stick on pots when the occupants start tipping them
over.)

--j_a