Short answer: Never completely. Oaks produce acorns for basically their entire adult lives, which can stretch from 20 to 50 years up to 500 or even 600 years old. I know, I know—that’s like you working a job for half a millennium. But oaks are stubborn. They don’t have a 401(k) to worry about.
However, there’s a catch: production slows down after about 80 to 100 years. Think of it like a grandpa who still mows the lawn, but takes three coffee breaks per stripe. A 200-year-old oak might drop a few hundred acorns in a good year, while a young, feisty 50-year-old can rain down ten thousand of those little brown grenades.
The "Sexy" Secret of Oak Ages
Here’s a mind-blower: Some oaks wait until they’re 20 to 50 years old just to have their first acorn baby. That’s like waiting for your midlife crisis before you start a family. And why? Because acorns are expensive—each one contains enough calories to feed a squirrel for a week. The tree says, "I’m not investing in that until I’ve got a solid trunk and decent Wi-Fi."
But even ancient oaks—say, a 400-year-old veteran—will still pump out acorns, just less often and with more drama. They do what’s called mast years—every 2 to 5 years, they go nuts (pun intended) and produce a bumper crop. In between? Crickets. Or just a few sad, lonely acorns that look like they gave up halfway through.
