Related Clues:

• Hollow up above it, tree rings showing age
• Plant from country not a success
• Batting last for Oxford, I become a dark blue
• Violet almost lodging with love
• Colour that's fashionable, like ochre originally
• Blue plant dye
• First person is doing badly with Violet
• Sign of adulthood
• Spectral hue
• I turn to independent for source of dye
• I, doing badly, colour
• Ellington's Mood
• Colour I associate with wrong-doing
• In excavation, find nothing of the plant
• In Bahrain dig out tropical plant