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HST (High Stress Training)

HST (High Stress Training) is a cannabis cultivation technique used to manipulate the growth and shape of plants through intentional stress. It involves subjecting the plants to specific forms of stress, such as bending, twisting, or breaking, to encourage branching, increase yields, and create a more desirable canopy structure.

The goal of HST (High Stress Training) is to create multiple main colas and promote lateral growth, allowing more light to penetrate the lower parts of the plant and increase overall bud production. By applying stress to the plants, growers can influence their growth patterns and optimize the use of available light.

There are several common HST techniques employed by growers, including:

  1. Topping: This involves removing the apical or main stem’s terminal bud, effectively stopping the upward growth and stimulating the development of multiple colas.
  2. FIMming (Fuck, I Missed): Similar to topping, FIMming involves pinching or cutting the top growth, leaving behind a portion of the new growth tips. This encourages branching and the development of multiple colas.
  3. Super Cropping: This technique involves gently squeezing and bending the stems until they partially break or become malleable. Super cropping promotes the growth of secondary branches and enhances light penetration.
  4. LST (Low-Stress Training): LST involves tying down the branches of the plant using soft ties or strings to create a more even and spread-out canopy. This technique helps to maximize light exposure to lower parts of the plant and encourages lateral growth.

HST techniques should be performed carefully and with proper consideration for the plant’s health and recovery. It is important to avoid excessive stress that could harm the plant or impede its growth. Careful observation and adjustment of the applied stress are necessary to prevent irreversible damage.

By implementing HST techniques, growers can optimize space utilization, increase bud production, and create a more even canopy. These techniques can be particularly useful in indoor cultivation setups where space is limited, and light distribution is crucial for maximizing yields.

It’s important to note that while HST can be beneficial when performed correctly, it requires careful monitoring and maintenance throughout the plant’s life cycle. Proper nutrition, watering, and support may be necessary to ensure optimal recovery and growth after applying stress.


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