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Lesson 1, Topic 1
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Understanding Vegetative Growth

Cartier April 3, 2023

Vegetative growth is the stage of cannabis growth that occurs after the seedling stage and before the flowering stage. During this stage, the plant grows rapidly and produces leaves, stems, and branches. Vegetative growth is crucial for cannabis plants to develop a strong root system, robust stems, and abundant foliage.

In the vegetative stage, cannabis plants require specific environmental conditions to thrive. These include:

Lighting: Cannabis plants require a minimum of 18 hours of light per day during the vegetative stage. Providing more light can result in faster growth but also requires more energy and may increase the risk of heat damage.

Temperature: The ideal temperature range for vegetative growth is between 20-30°C (68-86°F). High temperatures can cause heat stress, while low temperatures can slow growth.

Humidity: Cannabis plants thrive in a humid environment, with a relative humidity level of around 50-70%. High humidity can increase the risk of mold and mildew, while low humidity can cause dehydration.

Nutrients: Cannabis plants require specific nutrients during the vegetative stage to promote healthy growth. Nitrogen is particularly important during this stage, promoting leaf growth and chlorophyll production.

During the vegetative stage, cannabis plants can be trained and pruned to shape their growth and improve yield. Techniques such as topping, where the top of the plant is cut off, and LST (low-stress training), where the branches are gently bent to increase light exposure, can create a more even canopy and promote more bud sites.

The vegetative stage typically lasts 4-8 weeks, depending on the strain and growing conditions.

Once the plant has reached the desired size and shape, it can be induced into the flowering stage by changing the light cycle to 12 hours of light and 12 hours of darkness. Proper vegetative growth is critical for the plant’s overall health and yield; proper care and attention during this stage can set the foundation for a successful harvest.

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