For the ultimate girly wedding, opt for pale pink and lilac colours. These soft shades look like butter wouldn't melt and are perfect for a springtime wedding when pastels and new colours are just peeping their heads up after the winter.
The biggest advantage of this colour theme is that you'll have almost endless blooms to choose between. You'll be able to have an ombre of pinks and lilacs in your displays, only adding more to this springtime 'waftyness'. Think about your wedding stationery, too, as this will be an element of your wedding that would suit the different shades of these two colours without being too over-powering.