Rosa Mundi' (and its near-twin 'Christmas Cheer') have no rivals in their bloom time of late winter. Sometimes they begin to bloom in late January, but more commonly bloom in February or early March. Both have a petite truss of palest pink and when mature, become a dome of pink on a well-behaved plant. Experts say that 'Christmas Cheer' has slightly shorter leaves and blooms a week earlier than 'Rosa Mundi'. This cultivar is sometimes spelled 'Rosamundi'.