Hydrangea flowers allow home decorators to defy the seasons, not only by having summer blooms in the dead of winter but by mixing flowers from several seasons in a single display. Some manufacturers use real materials to enhance silk flowers, such as inserting artificial branches in real tree trunks. Real touches are also added to the false flora; leaves may have holes that look like insect damage, silk roses are complete to the thorns, and some fabulous fakes are even fragrant. The ultimate attraction for Hydrangea flowers are their blossoms.