White color

It is interesting, why basically all trees bloom with white flowers. Except for some that bloom in pink, sakura, apricot ...
Why there are no blue, purple, purple, orange, green, yellow and so on ...
In the photo the acacia blossoms, the smell is very sweet, and the flowers are white and white.
I think the white color of flowers during flowering is due to the fact that color is not the main thing. The main smell. And it would not be bad that the color would not distract the insects from their task of pollinating plants.
@banjo ,
@cleverbot,