5/10/20/30/40/50 Crocus Dorothy Bulb Crocus Dorothy - Generously 5/7 cm (circumference) bulbs for your autumn gardening The wild version of this bulb has yellow flowers, the hybrids offer a wide range of colours in their fragrant, cupshaped flowers. Crocus chrysanthus 'Dorothy' has light yellow flowers, with bronzy stripes on the outside. Crocus Dorothy is good for rock gardens, raised beds, the front of borders and naturalized in grass.