Vegetative stage
Remove large fan leaves blocking new growth, leaves touching soil and crowded interior growth.
Benefits listed
better airflow, better light penetration and stronger branching
Timing shown
any time during veg as needed while keeping the plant balanced and healthy
Early flower stretch phase
Target window
weeks 1 to 3 of flower while the plant is stretching
Remove large fan leaves shading bud sites, weak lower growth, crowded interior leaves and growth that blocks airflow.
Benefits listed
opens up bud sites, improves airflow, reduces humidity pockets and supports an even canopy
The poster explicitly says do not over-defoliate during stretch.
Late flower
Only remove dying or damaged leaves, yellow leaves, leaves with no light value and diseased foliage.
Benefits listed
avoids unnecessary stress, helps maintain plant energy and supports ripening and final yield
Timing note
keep late-flower defoliation minimal and focused on leaf health
Key reminders
Leaves are solar panels, so remove with purpose.
Good airflow helps prevent mold, mildew and pests.
Less is often more, use clean tools and adjust by plant response.