tag:blogger.com,1999:blog-446924751738546355.post83061909400128123..comments2023-10-09T00:09:16.769-07:00Comments on Arizona: Beetles, Bugs, Birds and more: Night of the Queen 2020Margarethe Brummermannhttp://www.blogger.com/profile/05623937180200255796noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-446924751738546355.post-52084383760000329902020-07-10T17:05:06.674-07:002020-07-10T17:05:06.674-07:00I really do not know. And it's not universal -...I really do not know. And it's not universal - further than some 10 miles from us, the date may be different. But I did notice that usually some of our more exotic garden spp like Harrisia may have one of their several blooming dates on the same day (night) as the local, native, mostly one-time per year blooming Peniocereus. The weather is - to human senses - just hot and dry when they bloom. Day-length is not the factor - the blooming date can vary by a month from year to year. Maybe an event as far as 3 months before starts the growth of the flower buds? But then why do they all open on the same date? (there are usually a few buds on big multifloral specimens that open sometimes weeks later)Margarethe Brummermannhttps://www.blogger.com/profile/05623937180200255796noreply@blogger.comtag:blogger.com,1999:blog-446924751738546355.post-29105168175831893002020-07-08T20:06:07.781-07:002020-07-08T20:06:07.781-07:00Margarethe, so what is your guess as to how those ...Margarethe, so what is your guess as to how those flowers coordinate their bloom?<br />Arthttps://www.blogger.com/profile/03456259466875283137noreply@blogger.com