It seems like every year is different as far as how long our pumpkins will last. Last year I swear it was only a few days before our pumpkins were already decaying and turning to mush. This year our pumpkins are doing much better but it was because I got some tips from gobankingrates.com that really helped. Before I clicked on the link with that website address I thought it was going to be spam, but these tips really helped.
Clean Your Pumpkin With BleachI had never heard of this before but after you get all the seeds out of your pumpkin wipe it down with a bleach and water mixture to delay any rotting to the pumpkin.
Fully Dry Your PumpkinBefore leaving your pumpkin outside to brave the elements, make sure your pumpkin is fully dry to avoid any mold.
Soak in Cold WaterIf your pumpkin starts decaying, put it in a cold bath for an hour or two and that often brings the pumpkin back to life.
Don't Carve Your PumpkinWhen you carve your pumpkin your pumpkin is going to decay at a quicker rate. If you don't carve and still decorate the outside, your pumpkin will last the longest.