Moon's Graden

I couldn't resist. A cedar arbor on sale at Menards.  I was wondering if
I have to paint or seal this structure, or can I leave it to weather
naturally?  

UNLESS YOU LIKE TO PAINT-  DON'T DO IT.  CEDAR WILL WEATHER VERY NATURALLY
TO A SILVER GRAY COLOR.  THE NATURAL COLOR WILL BLEND IN VERY PLEASANTLY
INTO  ANY GARDEN.  DAMP CEDAR WILL NOT TAKE PAINT AND WILL ALWAYS BE PRONE
TO PEELING.  STAINING WITH A THIN STAIN (LOW PERCENTAGE OF SOLIDS) WILL
ALLOW YOU TO CHANGE ITS COLOR BUT WILL STILL REQUIRE REPEAT COATS TO KEEP
LOOKING NICE.    IF YOU MUST PAINT- (YOU LIKE WHITE)- MAKE SURE THE ARBOR
IS EXTREMELY DRY AND DO NOT TRAP ANY MOISTURE IN THE WOOD UNDER THE PAINT.
 HOPE THIS IS OF HELP.