How to Tell Male from Female Cannabis Plants

You can tell male and female cannabis plants apart by looking at the shape and size of their flowers. Male plants have smaller, rounder flowers, while female plants have larger, more elongated flowers.

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How to Tell Male from Female Cannabis Plants
Cannabis plants are either male or female. Male plants produce pollen and female plants produce flowers. The flowers of female cannabis plants are covered in tiny resin glands that contain cannabinoids such as THC and CBD. These glands can be found on the leaves, stems, and sugar leaves of the plant.

To produce seeds, male cannabis plants must pollinate female plants. However, pollinated flowers produce lower-quality cannabis that is less potent and has fewer trichomes. For this reason, most growers prefer to grow only female cannabis plants.

Luckily, it is relatively easy to tell male from female cannabis plants. Male cannabis plants typically start flowering about a week before female plants. They also tend to have thinner, more delicate-looking leaves than female plants. In addition, their flowers are not as dense as those of females. Finally, the pollen sacs of males tend to be more visible than those of females.

If you are growing cannabis for medicinal purposes, it is especially important to ensure that your plants are free of pollen. Pollen can cause your medicine to lose potency and can also make it taste unpleasant. If you are growing for personal use, you may want to keep males around so that you can produce your own seeds for future grows.

Male Cannabis Plants

Male cannabis plants are generally taller and thinner than female cannabis plants. They also have fewer leaves, and their leaves are narrower than those of female plants. Male plants also produce flowers that are smaller and more sparse than the flowers of female plants.

The Pre-Flowering Stage

One of the most exciting times in a cannabis grow cycle is the pre-flowering stage. This is when growers can finally tell if their plants are male or female. While some growers prefer to grow only female plants (known as “sensimilla”), others choose to grow both sexes so they can produce their own seeds. Regardless of your preference, it’s important to be able to identify thesex of your plants during pre-flowering. Here’s a quick guide on how to tell male from female cannabis plants.

Pre-flowering is the stage in a cannabis plant’s life cycle when it begins to develop flowers, or buds. This process usually begins when the plant is around 6-8 weeks old. During pre-flowering, you may notice your plants begin to grow taller and stretch out more than they did during the vegetative stage. This is normal and isn’t anything to worry about.

One of the easiest ways to sex a cannabis plant is by looking at the shape of its first leaves, or “cotyledons.” Male plants will have pointed cotyledons, while female plants will have more rounded ones. However, this method isn’t foolproof, as some males can also have rounded cotyledons and some females can have pointy ones. If you’re unsure about the sex of your plant based on its cotyledons, don’t worry – there are other ways to tell.

Another way to determine the sex of your plant is by looking at the growth pattern of its leaves. Male plants tend to have leaves that grow in a V-shape, while female leaves typically grow in an alternating pattern up the stem (like stairs). This method can be tricky, as some plants may display characteristics of both sexes (known as “hermaphrodites”). However, if you’re patient and wait until your plant is a few weeks into pre-flowering, you should be able to get a good idea of its sex by examining its leaves.

The last way to tell male from female cannabis plants is by looking at the flowers themselves. Male flowers are small and lack petals, while female flowers are larger with well-defined petals. However, this method should only be used as a last resort, as it can be difficult to tell male and female flowers apart if you’re not an experienced grower.

Once you’ve determined the sex of your cannabis plant, you can decide whether you want to keep it or not. If you’re growing for seeds, you’ll need to keep both male and female plants so they can pollinate each other. However, if you’re growing for Buds (the smokable part of the plant), then you’ll only need female plants since they’re the only ones that produce buds

The Flowering Stage

The Flowering Stage is when the plant produces flowers (or buds). flowering generally lasts between 7-12 weeks, although some strains can take longer. the amount of time it takes for a plant to flower depends on the following factors:
-The Plant’s Genetics
-The Size of the Plant
-The Number of Hours of Darkness per Day

During the flowering stage, you will be able to determine the sex of your plants. Male plants will produce pollen, which can pollinate female plants and make them produce seeds. Female plants will produce white, hair-like structures called pistils.

Female Cannabis Plants

Although both male and female cannabis plants look very similar, there are some ways to tell them apart. The first way to tell them apart is by looking at the shape of their leaves. Male cannabis leaves are typically narrower than female cannabis leaves. Another way to tell them apart is by looking at their flowers. Male cannabis plants have small, round flowers, while female cannabis plants have larger, teardrop-shaped flowers.

The Pre-Flowering Stage

The pre-flowering stage is when the Cannabis plant starts to show its sex. Cannabis plants have what’s called “perfect flowers,” meaning they have both male and female reproductive organs. During the pre-flowering stage, the plant’s energies are focused on growing tall and thick. So, if you see a Cannabis plant that seems to be stretching a lot and has very few leaves, it is probably in the pre-flowering stage.

To determine the sex of your Cannabis plant during the pre-flowering stage, you will need to look at the nodes, which are where the leaves meet the stem. If you see tiny balls (pollen sacs) hanging from the nodes, then your plant is male. If you see what look like little white hairs (pistils), then your plant is female. If you’re not sure, wait a few days and check again because sometimes it takes a while for the sexes to become clear.

Cannabis plants usually start showing their sex around 6 weeks into their vegetative stage, but it can take up to 8 weeks for some plants. Once you know the sex of your plants, you can begin preparing them for flowering.

The Flowering Stage

To determine the sex of a cannabis plant, growers must wait until the flowering stage, when mature reproductive organs become visible. These structures are called “bananas” or “flowers,” and they appear on both male and female plants. On female plants, bananas cluster together in groups of two or more, and each banana has a pistil—a tiny, stalk-like structure that will eventually become the plant’s fruit (i.e., buds). Male plants have just one banana per cluster, and these flowers lack pistils.

Cannabis growers usually prefer female plants because only females produce buds—the smokable flowers that contain high levels of THC. Male plants are typically removed from the grow room as soon as they are identified, to prevent them from pollinating the females (and reducing the quality of the buds). However, some growers choose to keep a few males around because their flowers can be used to make low-THC hashish or other THC-infused products.


Cannabis is a dioecious plant, meaning it produces separate male and female flowers on different plants. Male and female plants look quite different from each other, so it’s relatively easy to determine the sex of your plants early on. Why does the sex of your cannabis plant matter? Because only female plants produce buds (the flowers/trim that are harvested and used to make cannabis products). Male plants don’t produce buds, but they can pollinate female plants, which causes the females to produce seedy buds. So, unless you’re growing cannabis for seeds, you want to identify and remove male plants as soon as possible.

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