Also called French hydrangeas, florist's hydrangeas, & hortensia. This is the most common type of hydrangea found in the United States. There are 3 different types of hydrangea macrophylla; mophead, lacecap and mountain hydrangeas. Some mophead hydrangeas will do fine in colder areas as long as the winter is not too cold and dry. The condition hydrangeas are most sensitive to is being exposed to a freeze after an extended warm spell. In those areas, additional protection may be required.
