Oak trees produce the most acorns once they reach 50 years old. Acorns are the reproductive nuts of oak trees, and the rate of acorn growth continues until the oak trees are approximately 80 years old before it gradually declines. It takes an average of about 20 years before an oak tree even begins to produce acorns. Mass acorn production generally occurs every 2 to 5 years. Since acorns are heavier than other plant seeds, oak trees cannot rely on the wind to spread them out to grow new trees. Instead, acorn dispersal is largely due to squirrels and jay birds collecting acorns and spreading them out to grow.
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