Can someone help? What level of water is suitable for this type of flower in this vase? – Reddit Post

This is a gift to my mom during her birthday celebration with her friends.

She once was gifted a previous bouquet of flowers but we couldn’t take care of it and eventually it died.

This time, this time I want to see how long I can help this bouquet survive.

And oh, this isn’t a repost just to clarify. The both of us don’t know much about flower types and the internet is quite hard to search ourselves for this one because this flower looks so similar to other kinds.