A morning glory unfolds quickly once its bud begins to open. This sequence follows changes in the petals rather than promising the same timing for every flower.
Morning glory flower
This is the initial small flower buds in the morning, and there is a sweet potion.
Little flower spheres are slightly opened.
The flow of flowers is slow, and only a little bit one day.
Morning glory flower blossom
Slowly change, it can flow in 10 minutes.
It is already possible to feel the flowering look.
Look, the speaker is open.
It's a beautiful morning glory.
Related reading: When Do Morning Glories Bloom?.