Possible Clues:

• I had a new pupil sent in from the nursery
• Had to get blooming well sick up
• Plant I left had to be pulled up, bad in the middle
• Bucket creator, one with a flower
• Brightly coloured garden flower with tuberous roots
• Composite trouble had come back
• Creator of elephants with elongated legs admitting height a bloomer
• Back trouble possessed Wooster's aunt
• Orna-mental flower
• Veronica Lake film 'The Blue ___'