"Carefully Wonder" Why? or a Yoyogi Rose

Not sure why, but this variety of pink rose is called "Carefully Wonder". I just wondered why?

There was a light sprinkle this morning when I went to Yoyogi Park to visit the rose garden. The roses are in in full bloom right now and are magnificent. There was just enough rain to keep others away, and to leave water droplets glistening on the delicate petals.

Nikon D800 with Nikon 105mm f/2.8G ED-IF AF-S VR Micro-Nikkor Lens f5.6, ISO 200, 1/320 sec.