Bloom

Bloom occurs in the spring.  It is when tiny white flowers, the size of pinheads, form on the vine.  If the temperature is perfect, neither too cold nor too hot, the flowers will self-pollinate, ultimately becoming grapes.

Grape petals are a very delicate greenish white, and instead of a typical bloom they detach at the bottom, coming off the flower as a cap.  Because of their appearance, the unopened buds are often mistaken for small green grapes.  Every flower can produce a berry and the cluster is almost full size when it blooms. 

Although each flower in a cluster can become a single grape, in most varieties only 20% of the flowers set.  Any more than that and the grapes are packed so tightly on the mature cluster that they crush and split each other. 

Blue Sky Vineyard's bloom occurred during the middle of May and the beginning of June.