David-- Your list is impressive. Monarchs should be lining up at your door or I guess as Monarchs do flutter around your plants. I hope you do not mind this question here. I have been growing tropical milkweed for 6 years now. I get Monarch caterpillars the last week of October. I have been reading that tropical milkweed is a no-no for Texas. Some say migratory Monarchs pick up diseases here, some say it encourages them to stay, and some of it I just do not understand. It was stated Texas could grow tropical milkweed as long as it was cut to the ground. It didn't t say to cut before or after Monarchs. By my dates I am pretty sure I get the last set of caterpillars of migratory Monarchs. Does anyone know what I am supposed to do with my tropical milkweed? Many blessings to all and all creatures great and small!