These are the most popular bigleaf hydrangea. Many recognize these due to their large flower heads that are purple, blue and pink. In general, mophead and lacecap leaves are relatively thick and crisp, somewhat shiny, and often heart-shaped. Their edges are coarsely toothed. They are approximately 4″-6″ long and 3″-5″ wide, but in some cases, they may grow even larger. Leaf stems (petiole) are short, causing the leaves to hug close to the main stems in most cases. Stems often have tiny black or red streaks or speckles. Mopheads and lacecaps have identical leaf forms.