Dear Diane I also do not have a problem with Crocosmia Lucifer falling over--it does to some extent, but in full sun seems to stand on its' own. In a little shade, the flower head will lean, dragging the leaves down a little. Soil was clay variously amended with bark, sand, or wishful thinking. Crocosmia masonorum only stayed one summer, so can't comment on it. Chasmanthe hasn't gotten to flowering size yet, so no comment there either. Ken