Defoliation can be a beneficial practice in certain cases, even at 7 weeks old, especially if your plant is healthy and vigorous. However, it's important to approach defoliation with care, especially during the flowering stage.
Here are some considerations and steps to follow if you decide to proceed with defoliation:
1. **Assess the Plant's Health**: Make sure your plant is healthy and not showing signs of stress or nutrient deficiencies. If the plant is already stressed, defoliation might exacerbate the issue.
2. **Focus on Removing Only Unnecessary Leaves**: Remove only the large fan leaves that are blocking light from reaching bud sites or are excessively shading lower branches. Avoid removing too many leaves, as they are essential for photosynthesis and nutrient transport.
3. **Use Clean, Sharp Tools**: Use clean, sharp scissors or pruning shears to make precise cuts. This helps minimize stress and the risk of introducing pathogens to the plant.
4. **Avoid Removing Leaves with Pistils or Developing Buds**: Be careful not to remove leaves that are supporting developing buds or flowers. Removing these could decrease your overall yield.
5. **Spread Out Defoliation Over Time**: Instead of removing all the leaves at once, spread out the process over several days or weeks. This allows the plant to recover between each session and reduces the risk of shock.
6. **Monitor the Plant's Response**: Keep an eye on how the plant responds to defoliation. If it shows signs of stress such as wilting or yellowing, dial back on further removal and ensure the plant's environmental conditions are optimal.
Remember, defoliation is not necessary for every plant or grower. It's a technique used to manage canopy density and improve light penetration in certain situations. Always proceed with caution and pay close attention to your plant's response.