Originally Posted by harveyc

Here's another GIF time-lapse animated image, this time of a H. undatus 'George' flower. I increased the frequency and took 38 shots. The first 35 were 5-6 minutes apart and the last 3 were 15 minutes apart, starting at 6:46pm and ending at 10:48pm.

Instead of imbedding the image I'll include links since some folks might have a slow connection and not appreciate the large file.

http://www.chestnuts.us/GeorgeBloom.gif (600x600 pixels, 5.3 MB)
http://www.chestnuts.us/GeorgeBloomM.gif (200x200 pixels, 714 KB)