If you see wispy white hairs appearing on your plant like the ones pictured below, then you know you have a female plant.
They first go through the vegetative life stage, which you can sort of consider its “childhood” since the plant is only focusing on growing bigger and taller, and gender doesn’t matter. At the beginning of this stage you usually can’t tell what the plant’s gender is.
How Light Schedules Affect Marijuana Life Stages
In the colloidal silver feminizing method, distilled water is mixed with pure silver and sprayed on female plants. This method works best when the plants are flowering. This results in pollen sacs being formed, which will allow the seeds to produce female plants.
Now consider that a single male plant can spread its pollen to an entire room of females.
As anyone with seasonal allergies can attest, it only takes a little bit of pollen to have a big impact. The reason that growers are so intent on weeding out male cannabis plants is that a single pollinator can negate an entire potential harvest.
Separating Male and Female Cannabis Plants
What are your thoughts on feminized seeds? If you’ve used them before, how did it go? Share your experiences in the comments below.
After a period of several weeks, the plant will begin to pre-flower, or form a small bud in the crux of a branch. One of the first signs your cannabis plant is female is the appearance of pistillates that are wispy and generally white in color. Male plants will instead produce pollen sacs that look rounded with distinct splits running lengthwise, a bit like a tiny crab claw. These are the structures that growers typically look for to determine a plant’s sex.
If a grow is accidentally pollinated, that means the resources that were spent to bring the plants to that stage — the water, soil, electricity, fertilizers, not to mention the price of the seeds themselves — will have been wasted growing weed that can’t be smoked.
How? The reason is that once pollinated, cannabis plants will cease devoting energy to growing flowers and will tell the existing flowers to stop producing resin, which translates to making less buds and less THC. That energy will be devoted to producing seeds instead. Think of the plant as a battery with a set amount of power. When that supply is spent in one area, it won’t be available for another.
Despite the potential for ‘hermies,’ knowing your seeds are female from the beginning is probably your best bet.