How Long Does it Take to Grow Cannabis?

It takes anywhere from 3-4 months to grow a cannabis plant from a seedling to a mature plant. The plant will usually be around 3-4 feet tall when it is ready to harvest.

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Cannabis, also known as marijuana, is a flowering plant that has been used for various purposes throughout history. The plant is thought to have originated in Central Asia and was first used for hemp production. Cannabis can be used to make textiles, rope, paper, and even fuel. In more recent years, the plant has gained popularity for its psychoactive properties. Cannabis contains a chemical compound known as THC, which is responsible for the plant’s mind-altering effects.

Cannabis can be grown in a variety of ways, and the amount of time it takes to grow the plant will depend on the method used. Cannabis can be grown indoors or outdoors, and plants grown outdoors typically take longer to mature than those grown indoors. The type of cannabis you are growing will also affect the amount of time it takes to reach maturity. indica strains tend to mature faster than sativa strains, for example.

In general, it takes between three and six months for a cannabis plant to reach maturity. However, there are many factors that can affect this timeframe, including growing conditions and the specific variety of cannabis being grown.

The Basics of Cannabis Growth

Growing cannabis can be a fun and rewarding experience, but it’s important to know the basics before you get started. One of the most important things to know is how long it takes to grow cannabis. Depending on the strain, cannabis plants can take anywhere from 6 to 16 weeks to grow from seed to harvest.

The Life Cycle of a Cannabis Plant

The life cycle of a cannabis plant starts with a seed. Once the seed has germinated, it will enter the vegetative stage. During this stage, the plant will grow leaves and roots, and ultimately produce flowers. After the flowers have been pollinated, the plant will enter the final stage of its life cycle: harvest.

The Different Stages of Cannabis Growth

Cannabis growth cycle can be broken down into stages. Stage 1 is referred to as the vegetative stage. This is when the plant is growing rapidly, building up energy reserves in the form of leaves, stems, and roots. The vegetative stage can last anywhere from 2 weeks to 6 months, depending on the strain of cannabis and how it is being grown (indoors or outdoors).

Stage 2 is known as the flowering stage. This is when the plant begins to produce flowers (or buds). The length of this stage also depends on the strain and growing conditions, but it typically lasts 8-10 weeks.

Finally, Stage 3 is called the curing stage. This is when the flowers are dried and then stored in an airtight container. The curing process can take several weeks to months, but it is necessary in order to preserve the quality of the buds.

Knowing the different stages of cannabis growth is important for two reasons. First, it helps you understand how long it takes to grow cannabis from start to finish. Second, it gives you a better idea of when to harvest your buds (based on the strain you are growing).

Factors That Affect the Length of the Cannabis Growth Cycle

The length of the cannabis growth cycle can be affected by a number of factors, including the type of cannabis strain you are growing, the growing environment, and the amount of light and nutrients the plants receive. In general, it takes about 3-4 months for cannabis plants to reach maturity. However, if you are growing a shorter cannabis strain, it might only take 2-3 months. Let’s take a closer look at the factors that can affect the length of the cannabis growth cycle.

The Type of Cannabis Plant

One of the most important factors that determines how long it takes to grow cannabis is the type of plant you’re growing. Generally, there are two types of cannabis plants: indica and sativa.

Indica plants are shorter and bushier than sativa plants, with leaves that are wider and thicker. Indica plants are also known for their heavy yields and their relaxing, sedative effects. They tend to have a shorter flowering time than sativa plants, which makes them a good choice for growers who are short on time.

Sativa plants are taller and thinner than indica plants, with narrower leaves. They tend to have a longer flowering time, but they also produce lighter yields. Sativa strains are known for their uplifting, cerebral effects.

The Growing Environment

Cannabis is a notoriously finicky plant, and its growth cycle can be heavily impacted by the environment in which it is grown. A variety of factors – from the amount of light to the temperature and humidity levels – can all affect the length of the cannabis growth cycle.

One of the most important variables in cannabis cultivation is the amount of light that the plants receive. Cannabis needs a minimum of 12 hours of light per day to thrive, and more light will result in faster growth. However, too much light can also be detrimental, leading to stunted growth or even death.

Temperature is another critical factor in cannabis cultivation. Cannabis prefers a temperature range of 21-26°C (70-80°F), and temperatures outside of this range can lead to slower growth or suboptimal results. Too much heat can also cause stress to the plants, leading to lower yields.

Finally, humidity levels also play a role in cannabis cultivation. High humidity levels (above 60%) can lead to problems such as mold or mildew, while low humidity levels (below 40%) can cause the plants to become dried out and stressed.

The Nutrients Used

The type of nutrients used during the cannabis growth cycle can also affect the length of time it takes for the plant to mature. For example, if you are using a lot of Nitrogen during the vegetative stage, it can speed up the growth of the plant. However, using too much Nitrogen can result in a weaker and smaller final product.


How long it takes to grow cannabis depends on a variety of factors, including the type of cannabis you’re growing, the climate you’re growing in, and the amount of care you’re able to give your plants. Generally speaking, it takes anywhere from 3-6 months to grow cannabis from seed to harvest.

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