What is the best flower for a friend's birthday?

Flowers suitable for friends' birthdays: lily, tulip, sunflower, calla lily, iris, etc.

Lily symbolizes success and success, symbolizes elegance and purity, and contains deep blessings;

The flower language of sunflower is faith, brilliance, arrogance, loyalty, admiration and sunshine, which represents friends' brave pursuit of happiness. I hope friends will keep their love for life and dreams.

Tulip flower language is fraternity, consideration, elegance, wealth, competence, intelligence and kindness. Pink tulips represent friendship and happiness, suitable for sending female friends;

Calla lily flower language is fraternity, holiness and piety, eternity, elegance, dignity, elegant temperament and hope, representing pure friendship;

Iris is gorgeous in language, symbolizing light and freedom. White iris stands for innocence, yellow iris stands for eternal friendship, and purple iris stands for good luck.