What is the rarest color of hollyhock? I was told that if you get a yellow hollyhock that the color was rare.
What Is the Rarest Color of Hollyhock?
Certified GKH Gardening Expert
Yellow hollyhock are actually not that rare at all and colors vary with
shades of carmine-rose, crimson, lemon, lilac, pink, purple, bicolor and white. In fact, one of the rarest hollyhock colors is black (Alcea rosea nigra--actually very dark purple or dark red).