White Almond Blossoms in Watercolor.

Here in Madrid, Spain the almond trees are in full bloom in the first week of March.  The flowers have white delicate petals with a touch of crimson in the middle. These blossoms are fleeting; I don’t catch them every year.  Sometimes it’s windy and they blow away and decorate the ground before I can paint them.  How do you paint white flowers in watercolor?  You paint the space around them to give them shape by respecting the white.