Is it Annual or Perennial ?

Just bought a nice Coreopsis Early Sunrise , perennial plant (?)
Looking it up for reference , the RHS site states..
Coreopsis Early Sunrise' is a perennial, usually grown as an annual,
I have seen this phrase on a couple of other plants. What does it mean though do you grow it as a perennial or renew each year from seed grown plants
TIA

 

Hi Harry,

" Perennial usually grown as an annual " usually means that they are slightly tender and unless given some protection over the Winter they would flower and then die.

Think the same for Geraniums ( Pelargoniums ), Petunias, Bedding Lobelia, Begonias and many Fuchsias etc. All of these are perennial in their native habitat but are grown as annuals in the UK.