Perenial or Perennial: How To spell?
The word Perenial is misspelled against Perennial, a noun meaning "A perennial plant; a plant which lives or continues more than two years, whether it retains its leaves in winter or not."
Perennial has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings pere & ial which should not be misspelled with single 'N'
Wrong Spelling:  pere-n-ial  Correct Spelling:  pere-nn-ial 
Find more wrongly spelled words of Perennial to spell it well.