Hollyhock 39crme de cassis39 is a particularly mouth45watering variety bearing veined flowers in juicy blackcurrant that fade to paler berry shades around the edges each vertical stem bears an attractive mixture of double semi double and single blooms as well as being a cottage garden essential bringing height and stature to the back of perennial borders hollyhocks made handsome cut flowers for summer bouquets and their nectar45rich blooms are a magnet for butterflies height