Here's what rhymes with caltha.
                        
                        
                    
                                Words that almost rhyme with caltha
alpha  alfalfa  gala  asthma  gamma  aqua  kappa  magma  manna  quanta  lambda  sacra  manga  plasma  veranda  mantra  piazza  verandah  naphtha  miasma  strata  stanza  banana  nostalgia  schemata  pellagra  savanna  alpaca  savannah  panorama  memoranda  bonanza  propaganda  extravaganza