Hello,

(Apologies if I have posted this in the wrong section - I wasn't sure where to post it.)

I am currently working on an art project in which I am recording the process of a flower opening and closing in response to light/humidity. I have already done this with a couple of tulips which worked very well but now that their season is over I need some other flowers.

I have bought an Iceland Poppy - does this close at night?

Can anybody tell me which other flowers go through this process that may be currently or just about to flower (I am from London, UK) so that I can go and buy them and do my project asap.

Any help would be much appreciated,

Thank you,

Linus.