Possible Clues:

• Plant author brought to ball
• Common garden flower
• Shy priest presented with a flower
• Chuck essayist producing something flowery
• Blooming well throw up at last and sick 'e will turn at last
• Tropical or subtropical bedding plant
• Ball landing on writer's plant
• Liable perhaps including nothing but a bloomer
• After highball, say, writer one's found in bed
• It could be blooming well all one about the OBE