They've been falling for weeks now, scaring the cats and covering the ground in stunning amounts. Oak trees do not produce acorns every year. Although red-oak-type trees require two years to produce an acorn crop, they flower every spring, whether or not they have immature acorns. Even then, acorn production is not consistent from year to year.

If you have lots of oak trees in your area, you know there can be good years for acorns and bad years. Depending on their species, the trees are 20 to 30 years old when they produce their first acorns. An oak tree might produce acorns every 3 to 5 years, but not on a regular basis. That means they also have the potential to produce a crop of acorns every year as long as the conditions for fruit-set are favorable year after year . One oak can drop up to 10,000 acorns in a mast year.

How many acorns does an oak tree produce and drop in a year? This is a big year for white oaks. Once every 2-5 years the oak trees produce and let fall a stunning number of acorns. Acorn production varies for many reasons, according to other tree experts.