Janet the blue is very weak and get bleached out first. Then I suppose it will be the turn of the red and the flower should go white. One thing though, no perfume(smells like morning glory vine never checked the flowers) as to bunches of flowers
. Let it be given some more time to decide, this is the first time it is flowering.
Ok! Went and checked in torch light. Each open flower has a second bud right behind it and one, two flower bunch also seems to have a bud. So while the first flower is going pink there is a second blue one right behind. I suppose when the first one goes white then the third one will open. So that will explain the morning, afternoon and night rigmarole in a way.
Corymb or Umbel to early to say. I prefer the Umbel design.
Regards,
Arif.