In case you are interested: Hydrangeas are known for their gorgeous blooms, unique shapes, and elegant colors. Hydrangeas come in three central bodies, and the mop head is also known for its pom shape, the lace cap, which grows in clusters; or the panicle hydrangea, which grows in a cone shape. The Hydrangea mop heads were actually hidden in Japan's secret gardens for hundreds of years before they were finally discovered in 1776 by Sweetish Botanist Carl Peter Thunberg. Chat with us if you have any additional questions, but don't delay your online purchase even if you don't need them delivered for a while.