Pieter wrote: It is a strange thing how plants can coordinate their flowering, take Neomarica caerulea for example, with few exceptions every single flower on all my plants open on exactly the same day! My N. caerulea don't do that at all -- the flowers open successively over a period of a few weeks. I'm always thrilled when more than a few open on the same day. Unfortunately I only have a single clone, and the plant is self-sterile, so I get no seed. I thought I might try crossing it with N. northiana, but the flowers never open seem to open on the same day. Anyway, I'm not sure the cross would succeed. (By the way, my N. northiana has a much greater tendency to have all the flowers open on the same day.) David E.