Year one: bought pumpkins October 1st. By October 12th, one had collapsed into itself like a sad orange balloon. By Halloween, the survivors were growing fur.

Year two: I did some research and kept a carved pumpkin fresh from October 5th all the way to November 1st. The secret is a bleach bath before carving and Vaseline after.

For uncarved pumpkins

Uncarved pumpkins rot from the bottom up, where moisture from the porch or ground seeps in. Put something under them. A square of cardboard, a scrap of wood, even a folded paper towel. Anything that breaks contact with a damp surface.

Wipe the whole pumpkin with a dilute bleach solution — one tablespoon bleach per quart of water. This kills mold spores sitting on the skin. Let it dry completely before putting it out. The bleach smell dissipates within a few hours outdoors.

For carved pumpkins

The moment you cut into a pumpkin, you’ve started a clock. The exposed flesh is a buffet for bacteria and mold. A bleach bath after carving extends the life dramatically.

Mix one teaspoon of bleach per gallon of water in a bucket big enough to submerge the pumpkin. Dunk the whole thing for about eight hours. Yes, eight hours. This saturates the exposed surfaces and kills the organisms that cause rot.

Remove it, drain the water out, pat dry with paper towels. Then — here’s the part most people skip — rub petroleum jelly on every cut edge. The Vaseline seals in moisture and keeps the edges from shriveling.

Temperature matters

If daytime temps are still hitting the 80s where you live, bring pumpkins inside during the day and put them out at night. Heat accelerates rot faster than anything else. A pumpkin on a hot porch can turn in three days.

Shade helps too. Direct sun heats the pumpkin like an oven. Tuck it on a shady part of the porch if you can.

The spray bottle maintenance trick

Keep a spray bottle of dilute bleach water — same ratio, one tablespoon per quart — and mist the pumpkin every three or four days. Gets into the crevices you missed. Takes ten seconds. Your pumpkin will outlast your neighbors’.