Daffodils, especially the smaller varieties, are perfect for boutonnieres and corsages, while the standard size is great for spring wedding bouquets. The most popular color is yellow, but white can also be mixed with many other flowers.
Tulips are classic spring wedding flowers. The wonderful thing about tulips is that there are so many colors and varieties (over 500), so you will have a ton to choose from! There are many shades of yellows, whites, pinks, mauves, purples, and reds.
Hyacinths have an amazing fragrance, beautiful shape, and make a great accent for other flowers, especially for those who want to incorporate blue into a floral arrangement.
Lily of the Valley has a season that is usually around April and May. Many people enjoy the fragrance of these flowers, and they are perfect for boutonnieres, corsages, and accents to a bridal bouquet. Make sure to take the price into consideration, however, as it takes more of these small flowers to give a bouquet its fullness.
Gerber daisies (shown above) are also available in a variety of spring colors, such as red, white, and bright yellow. Another advantage is that they are available year-round, and likely to be a bit less expensive.