How Long Does It Take For A Hemp Crop To Grow?

So you’re curious about how long it takes for a hemp crop to grow? Well, you’ve come to the right place! Whether you’re interested in the nutritional benefits of hemp, its environmental impact, or its industrial uses, understanding the timeline of a hemp crop’s growth is essential. From seed to harvest, a hemp crop typically takes around 70 to 120 days, depending on various factors such as climate, soil conditions, and the desired end-use of the plant. In this article, we’ll explore the journey of a hemp crop from start to finish, providing you with all the information you need to know. So, sit back, relax, and let’s get started!

join our newsletter to get updates

Factors Affecting Hemp Growth

Hemp is a versatile crop that can be grown in various climates, which makes it suitable for cultivation in different regions across the world. However, several factors can affect the growth and development of hemp plants. These factors include environmental conditions, soil quality, genetics, and cultivation practices.

Hemp Germination

The first stage in the growth of hemp plants is germination. During this stage, the seed begins to sprout and develop into a seedling. Hemp seeds require a specific set of conditions for successful germination. These conditions include proper soil moisture, temperature, and light exposure. The optimal temperature range for hemp germination is between 68-86°F (20-30°C), while the soil moisture level should be maintained at around 80-90%. Additionally, hemp seeds should be sown at a depth of around 0.5-1 inch (1.27-2.54 cm) in the soil to ensure proper growth.

Hemp Vegetative Stage

After the germination stage, hemp plants enter the vegetative stage. During this stage, the plants focus on growing leaves and branches, primarily to increase their overall biomass. The length of the vegetative stage can vary depending on the hemp variety and specific growing conditions. On average, the vegetative stage for hemp can last anywhere from 6-10 weeks. However, some varieties may have a shorter or longer vegetative stage, depending on their genetics.

Hemp Flowering Stage

The flowering stage is a crucial phase in the growth of hemp plants as it is when they start to produce the flowers or buds. The length of the flowering stage is determined by the hemp variety and environmental factors such as light cycles. Most hemp varieties have a flowering period ranging from 8-12 weeks. During this stage, it is important to provide the plants with the correct light cycle, as hemp is considered a short-day plant. This means that it requires longer dark periods (around 12 hours of uninterrupted darkness) to trigger the flowering process.

Hemp Seed vs Clones

When it comes to growing hemp, there are two primary methods of propagation: using hemp seeds or clones. Hemp seeds are the result of pollination between male and female hemp plants, while clones are cuttings taken from a mature hemp plant. Both methods have their advantages and disadvantages.

Growing hemp from seeds allows for genetic diversity, as each seed represents a unique combination of traits from the parent plants. However, this method can be unpredictable, as it can result in both male and female plants. Male plants do not produce flowers or cannabinoids, making them less desirable for hemp cultivation.

On the other hand, growing hemp from clones ensures that the plants are genetically identical to the parent plant, resulting in consistent characteristics and quality. Clones also have a faster growth rate compared to plants grown from seeds. However, this method can limit genetic diversity and may be more susceptible to diseases and pests if the parent plant is affected.

Indoor vs Outdoor Hemp Growth

Another factor to consider when growing hemp is whether to cultivate the plants indoors or outdoors. Both methods have their advantages and disadvantages.

Indoor hemp cultivation allows for greater control over environmental conditions such as temperature, humidity, and light exposure. This control can result in faster growth rates and higher yields. Additionally, indoor cultivation can be done year-round, regardless of the external climate.

Outdoor hemp cultivation, on the other hand, relies on natural sunlight and environmental conditions. This method can result in larger plants and potentially higher yields due to the unlimited space and natural resources available. However, outdoor cultivation is limited to specific growing seasons and is more susceptible to fluctuations in weather conditions and pests.

Auto-flowering Hemp Varieties

Auto-flowering hemp varieties have gained popularity in recent years due to their unique characteristics. Unlike traditional hemp plants, which rely on changes in daylight hours to trigger the flowering stage, auto-flowering varieties automatically transition from the vegetative stage to the flowering stage based on their age.

Auto-flowering hemp plants typically have a shorter life cycle, ranging from 8-12 weeks from seed to harvest. This shorter growth timeframe makes them ideal for regions with shorter growing seasons or for multiple harvests in a year. However, auto-flowering hemp plants tend to be smaller in size and may have lower yields compared to traditional varieties.

Hemp Growth Timeframe

The overall timeframe for growing hemp can vary depending on several factors. From germination to harvest, hemp crops can take anywhere from 3-5 months. The duration of each stage, including germination, vegetative growth, and flowering, can vary depending on the specific hemp variety, growing conditions, and cultivation practices.

Harvesting Hemp

The final stage in the growth of hemp is the harvesting process. Hemp plants are typically harvested once the flowers have reached their desired level of maturity. The timing of the harvest is crucial, as harvesting too early or too late can result in a decrease in the quality of the hemp crop.

The method of harvesting hemp can vary depending on the intended use of the plant. For fiber production, hemp stalks are typically cut close to the ground and left in the field to dry. Once dry, the stalks can be processed to extract the fiber. For CBD production, hemp flowers and buds are harvested and then dried and processed to extract the cannabinoids.


The growth of hemp is influenced by various factors such as germination conditions, the duration of the vegetative and flowering stages, the choice of propagation method, and the cultivation environment. Understanding these factors is essential for successful hemp cultivation and maximizing crop yields. Whether you choose to grow hemp from seeds or clones, indoors or outdoors, or opt for auto-flowering varieties, each decision will impact the overall timeframe and results of your hemp crop. With the right knowledge and careful cultivation practices, growing hemp can be a rewarding and profitable endeavor.

join our newsletter to get updates

Leave a Reply

Your email address will not be published. Required fields are marked *