Thanks all. Yes I want more of these!
I'm afraid I did a stupid thing...
I gave it a quick dip before going to work in the morning(while hubby was screaming for me to hurry up & get into the car) and I'm pretty certain I must have got the flower wet- I can't see why else it would happen? ...came home in the evening to find it closed up
....well that has certainly taught me to handle with care at all times!
Luckily, I have a chance of an other flower in a couple months..so I'll be careful from now on not to do it ever again!