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A cannabis plant that develops both male and female reproductive organs, often due to stress, which can pollinate female plants.
A hermaphrodite cannabis plant is one that develops both male and female reproductive organs on the same plant. This can occur as a natural genetic trait or, more commonly, as a stress response to unfavorable growing conditions. Hermaphrodite plants are problematic because the male flowers (pollen sacs) can pollinate the female flowers, resulting in seeded buds.
Environmental stress is the most frequent trigger for hermaphroditism in cannabis. Light leaks during the dark period, extreme temperature fluctuations, nutrient deficiencies or toxicities, physical damage, and overlong flowering periods can all push a female plant to develop male pollen sacs. This is an evolutionary survival mechanism: the stressed plant produces pollen to self-fertilize and ensure reproduction before dying. Some genetic lines are more prone to hermaphroditism than others, which is why reputable breeders test their genetics for stability.
Regular inspection during early flowering is the best defense against hermaphrodites. Male pollen sacs appear as small, round, banana-shaped or ball-shaped growths among the female flowers. If caught early, individual pollen sacs can be carefully removed, but plants showing widespread hermaphrodite traits should be removed from the grow room to prevent pollination. Seeds produced by hermaphrodite pollination often carry the herming tendency. When choosing seeds, purchase from established breeders who stress-test their genetics to minimize hermaphrodite risk.
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