Possible Clues:

• Flowering plant
• Chord I turn into a flower
• Orchestra to open with church cover, for the most part, by one of The Hothouse Flowers
• Exotic plant
• Hothouse flower
• Old church concealed lippy, exotic type in hothouse
• Exotic and expensive flower
• There's a blooming whale of a lot concealed here
• Lei flower
• Ornate flower