Cupped leaves on Hydrangea arborescens Are the leaves on your 'Annabelle' hydrangeas stuck to each other? Inspect them and any other hydrangea arborescens you may have like Incrediball ® or Invincibelle ® Spirit. You may notice some leaves cupped together. It looks like the leaves above from my Invincibelle ® Spirit.  Interesting, huh? Don’t panic!