John, If you are referring to inadequate strength in the bloomstalk, this is due to a relative lack of cellulose in the periphery of the stalk, which in turn is due to a lack of stimulation from air movement. The closest I've seen in the literature is thigmotropism, but it is distinctly different. I could be much more verbose on the subject but the short answer is to play an oscillating fan across them periodically during their development. I do that with all my seedlings now before trying to transplant them, taking the success rate for tomatoes and peppers from near 0% to near 100%. This is the root of the mythical "hardening off" effect, where you place the seedlings outdoors for a week before transplanting them. Tim -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of John Wickham Sent: Sunday, March 09, 2014 10:12 PM To: Pacific Bulb Society Subject: [pbs] Flop-overs A lot of my Moraeas and species Gladiolus seem to flopping over in bloom. Do they need a deeper pot, to potted deeper? Or is this always going to be a problem with these taxa when they're potted?