Possible Clues:

• That's the same monster plant
• Plant shrew beneath crack
• Plant boy’s brought round moved grandpa
• Sudden pain working for plant
• Fury after game, seeing bloomer
• Simple game won’t come to an end — I go to bed
• Slowly continue to add to bark, as plant
• Speak sharply, confronting monster one's found in the garden
• Pretty thing in garden's become tedious after photo
• Poor grandpa's regularly taking something in bed