Answer by  
                                                                                          worker3873 (146)
                                                            
                          
                          
                                                          Most to all flowers in the aster and rose families need de-heading. Plants in the Aster family include most daisies and mums. Other perennials where the flowers re-emerge or still haven't bloomed will need the occasional de-heading to revive the overall look of the plant and encourage new growth to emerge. All roses need regular de-heading too.