Your growing medium houses your plants’ roots, helping them absorb nutrients and water. A poor growing medium can cause root problems, which, you guessed it, causes stress for your plants.
Plants that turn hermaphrodite late in the bloom phase usually develop what some growers call “bananas”. This is the male stamen (exactly like those you’d find inside a male pollen sac), which has protruded through the female flower and can release pollen at any moment. Technically speaking, these are mixed-sex buds, rather than true hermaphroditic plants.
WHAT KIND OF STRESS CAN CAUSE CANNABIS PLANTS TO BECOME HERMAPHRODITIC?
Using a growing medium that is too acidic or alkaline is another big stressor for cannabis.
Cannabis plants need the right nutrients to produce great bud. Over/underfeeding can stress your plants, affecting their ability to develop properly and potentially increasing the risk of becoming hermaphroditic.
• Temperature and humidity
• Seed manipulation
Let’s take a deeper look into male and female cannabis plants. From there, we’ll see what causes some specimens to develop both male and female reproductive organs.
Cannabis growers and breeders use this trait to their advantage, since it allows them to separate male and female plants. This enables them to prevent the flowers from becoming fertilised and going to seed, which results in better quality flowers, known as sinsemilla.
HERMAPHRODITES: WHEN CANNABIS PLANTS BECOME MONOECIOUS
It should also be noted that male pollen sacs and female flowers develop at the same point on the plant. Both structures emerge from nodes, the point at which branches meet the main stem. So, when you see buds starting to form on some plants, start looking for pollen sacs too.
Cannabis belongs to a minority of species that are dioecious in nature, meaning they produce separate male and female plants. Specifically, it should be noted that only 7% of all angiosperms (flowering plant species) possess this rare and interesting trait.
Male plants, in contrast, don’t produce flowers. This makes them less valuable for growers seeking only buds. However, they do produce pollen sacs. These small vessels create the genetic material required to fertilise female flowers and create hybrids. This makes the males extremely important for breeding new cannabis strains.
This swollen calyx has a seed developing inside
Unfortunately, some cannabis seed breeders are more trustworthy than others. The great ones have created stabilized strains that have been bred over several generations to produce a consistent product without any problems with plant sex.
Conclusion: Feminized seeds from a trustworthy breeder have a low chance of producing hermies, but the odds are much worse with feminized seeds from an untrustworthy source
Yet a lot of growers grow with regular seeds because they’re easier to breed and produce at home. Many growers have created a system for weeding out male plants that is more convenient for them than using feminized seeds.
The pollen from a hermie plant makes feminized seeds