The hydrangea is an old fashioned bush of flowers that grow in many yards in the United States; these flowers grow in a cluster, with a main stem and little branches off ending in a four petal flower. These when dried can be in blue or natural and are great in arrangements, crafts and wreaths. According to the Greek description, the Hydrangea resembles the Greek water vessel and this is where the name of the flowers originated from the resemblance.