That fellow in that link k.a.kiani of Siasat.pk from London,, if he is a school kid, it is Ok.. but if he is high school graduate with a bit biology background., he is a FOOL.,
He should have known if flowers respond/bloom to azan, means that it is nothing to do with that Arabic gibberish but Biological species respond to many signals.. such as sound, touch, light, magnetic fields etc..etc.. That is a very well established fact..
I am sure such sound sensitive flowers will bloom even if dog howls around that flowering plant ..forget Azan ..