ARE THE LEAVES ON YOUR HYDRANGEAS STUCK TO EACH OTHER? Are the leaves on your woodland hydrangeas stuck to each other? Take a look at your 'Annabelle' hydrangea and any other hydrangea arborescens you may have like Incrediball ® or Invincibelle ® Spirit. You may notice some of the leaves cupped together. It looks like these leaves on my Invincibelle ® Spirit. Hydrangea arborescens showing typical activity of leaf tiers forming their cocoon-like structure to rear their young.