Within a matter of weeks, these small pre-flowers swell into dense nuggets and begin churning out cannabinoid and terpene-rich resin. Since you the removed males and prevented pollination, your flowers will continuously produce resin until the end of the growing cycle.
Cannabis, like those who love it, doesn’t always stick to the rules, though. Sometimes, this dioecious plant species goes against the grain and develops both male and female reproductive organs. These specimens are known as hermaphrodites. Either genetic or environmental factors, or both, can cause plants to develop this unusual trait. Having both buds and pollen sacs, they end up developing the ability to pollinate and reproduce with themselves.
Female pre-flowers also develop at the nodes. You can distinguish them based on one obvious visual characteristic: hairs. Female pre-flowers feature tear-drop shaped calyxes with small hairs protruding from the tip. These small hairs, known as pistils, are the sex organs of female cannabis flowers.
IDENTIFYING HERMAPHRODITE CANNABIS PLANTS
A guide to differentiating between male, female, and hermaphrodite cannabis plants.
Despite their differences, all female plants share one thing in common: they produce flowers. These flowers, colloquially known as buds, possess small glandular structures called trichomes that produce cannabinoids such as THC and CBD.
It also means cannabis growers have more control when it comes to crossing specific males and females together. They can choose two healthy and vigorous specimens, place them close together, and produce progeny that express certain traits.
Finally, swiftly remove any male flowers that appear. If the plant has very few male flowers, those flowers can be removed, but the plant will need to be watched closely. Plants with many male flowers should be eliminated entirely.
The sex of a plant is determined by its genetics before germination even begins. With the sex genetically encoded, there is no way to make a male plant female, or a female plant male. There are techniques that can be used, however, to encourage a male plant to display female characteristics. These techniques require the use of chemicals, such as ethylene , to prompt a hormonal response from the plant.
A hermaphroditic plant, by definition, contains both female and male sex organs. Photo by: Gina Coleman/Weedmaps
How can you tell a male plant from a female plant?
Other stressors that may incite female cannabis plants to become hermaphroditic include disruptions to the photoperiod, dramatic shifts in temperature, disease or pest infestations, the use of toxic pesticides, and physical damage from vigorous pruning.
Female plants are generally shorter, denser in foliage, and broader than their male counterparts. Photo by: Gina Coleman/Weedmaps
Perlowin advises that growers who wish to prevent female cannabis plants from herming must be diligent throughout the plant’s grow cycle. For starters, purchase seeds from a reputable company or trustworthy breeder that understands cannabis genetics. While potential environmental stressors must be monitored and minimized, growers should also examine their plants every day for any unusual growth.
A true female cannabis plant cannot be cloned from a male plant. Cloning is a process that is used by breeders to make genetic copies of robust, healthy female plants, reducing the guesswork that sometimes accompanies cannabis cultivated from seed.