Here's what rhymes with blossem.
                        
                        
                    
                                blossom  awesome  possum  opossum  Words that almost rhyme with blossem
often  rosin  caution  cation  soften  precaution  libation  tryptophan  microcosm  herniation  macrocosm  calumniation  autumn  problem  bottom  column  solemn  forum  balsam  dorsum  bonum  drachm  rostrum  flotsam  foursome  slalom  carom  boredom  decorum  mortem  quorum  condom  sorghum  nostrum  wampum  metronome  thraldom  thralldom  cockscomb  quantum  stardom  gastronome  postpartum  falciparum  sugarplum