Lacecaps are the wild hydrangeas set up by nature to have two kinds of florets in the lacy flower heads. The showy outer florets ring the edge of the head. Their job is to attract pollinating insects to the less-showy inner fertile florets. It's the job of the fertile flowers to make fruit/seeds and reproduce so the species lives on.

We've asked Mariana DiVita to explain the differences between types of hydrangeas. Experts say there are 25 to 80 different species of hydrangeas, but for the average gardener 6 are the most popular. Each species has different cultural requirements - no matter your garden or garden style there is a hydrangea for you!