I don't think you can unless it was pink to begin with an then turned white. In that case you can try making the soil more acidic.
Virginia's state flower is the dogwood, a small white blossom that grows on the dogwood tree.
white
The primary color of a dogwood tree is white, but there are also pink and red ones.
White, pink, or red.
The Dogwood blooms a creamy white color.
The blossom of an orange tree is white. See the link to the image below.
An Orange Blossom's petals are white with long white pistils and yellow stigmas.
Dogwood trees, but there is a rare dogwood in the cooler regions that have a pink bloom.
it is pink,or sometimes a mix of purple and pink.. it is very beautiful
Dogwood sawfly (Macremphytus tarsatus)
Blossom Hill do a red, a white and a rose wine.
It will change its color. From blue it will become white. It will change its color. From blue it will become white.