Colchicum autumnale Nancy Lindsay. Also known as Naked Ladies or Autumn Crocus. Plant in well-drained soil in full to part sun. Plant bulbs 4 inches deep and 5 inches apart. Color: Mauve, Violet, White (syn.Pannonicum).AGM.Bright mauve-violet flowers with a white line starting at the base of each segment.Flowering Autumn.Size 20cm.