Training Techniques

Cannabis Training Techniques: Step-by-Step Guide

Simple methods to shape your canopy, improve airflow, and help your plants make better use of light.

eco LST (Low Stress Training)

No major damage or wounds to the plant — mostly leaf, branch, and plant arrangement.

  • Leaf Tucking: Tuck fan leaves under trellis netting or branches to expose bud sites. Can be done at any stage.
  • Screen of Green (ScroG): Train branches horizontally to maximize bud density. Best during late vegetative and early flowering stages.
  • Sea of Green (SoG): Multiple plants arranged to fill canopy space, often combined with mainlining.

grid_on Trellis Net

A simple tool for even canopy distribution and structural support.

Some grow tent kits come optimized with trellis nets, helping spread branches evenly for better light exposure.

Learn more about using a trellis

double_arrow Stem Bending Devices

Available for purchase or 3D printing, these clips train branches to bend at a 90-degree angle.

Similar to supercropping, this allows gradual adjustments to reduce stress and could be considered Medium Stress Training (MST).

linear_scale Soft Garden Wire

An inexpensive tool for guiding branches and spreading them horizontally around the pot edge.

Use wire to tie down branches and encourage more verticals. Some fabric pots include grommets for this.

healing HST (High Stress Training)

Targeted damage techniques such as defoliation, topping, and supercropping.

  • Supercropping: Bend branches until the tissue snaps internally, promoting horizontal growth and a sturdy “knuckle.”
  • Topping: Clip the apical meristem to reroute energy to lower branches. Best in late veg; avoid with autoflowers.
  • Defoliation & Pruning: Remove leaves and branches that do not receive enough light to improve airflow and reduce mold risk.

spa Mainlining or Lollipopping

A high-stress pruning technique that removes lower growth to focus energy on top bud sites.

Often used when growing for high-quality flower, though lower bud sites can be left intact when growing for hash or concentrates.