Each plant produces tens of thousands of seeds that remain viable in the soil for decades, leading to considerable invasive potential. What is the difference between auto and photoperiod cannabis varieties. It s important to harvest at the right time for the best results.  Source: <a href="https://www.scaleinlegnosrl.com/weed-seeds-commonly-present-in-specific-vegetable-crops/" / rel="nofollow">https://www.scaleinlegnosrl.com/weed-seeds-commonly-present-in-specific-vegetable-crops/</a>