Possible Clues:

• Holland bloomer
• A bulb can be extremely useful in propped-up mine
• Urn-shaped blossom
• Flower musically from Amsterdam
• __ tree (Indiana's state tree)
• Without doubt, pitiful thing that's largely out in Holland?
• Liliaceous bulb
• Result of bulb being wrongly lit up
• Flower makes a half turn on opening
• Garden flower from bulb