Low Stress Training (Cannabis Growing)
Low stress training (LST) is a cannabis training method that gently bends and repositions branches without damaging the plant. The goal is to control plant shape and encourage more even growth while minimizing stress.
LST is one of the most beginner-friendly and autoflower-safe training techniques.
What Does LST Do for Cannabis Plants?
LST works by reducing apical dominance, allowing lower branches to receive more light and grow into productive tops. This results in:
- A wider, more even canopy
- Improved light penetration
- Better airflow through the plant
- More uniform bud development
Because no tissue is damaged, plants continue growing with little to no recovery time.
LST and Autoflower Cannabis
LST is especially well-suited for autoflowers.
Autoflowers respond well to LST because:
- It can be started early and adjusted gradually
- Recovery time is minimal
- It fits within the autoflower’s fixed life cycle
LST is often the preferred training method for autoflowers.
How LST Is Done
LST typically involves:
- Gently bending stems or branches
- Securing them with plant ties, wire, or clips
- Gradually adjusting positioning as the plant grows
Training usually starts in early vegetative growth and continues through stretch.
LST vs High Stress Training (HST)
Key differences include:
- LST: Gentle bending, low risk, minimal recovery
- HST: Cutting or crushing, higher risk, recovery required
LST focuses on guidance rather than force.
Common Mistakes When Using LST
- Bending stems too aggressively
- Starting too late in flower
- Tying branches too tightly
- Failing to adjust ties as plants grow
LST should always be done gradually.
Is LST Worth It?
LST is ideal when:
- Growing autoflowers
- Working in limited vertical space
- Seeking improved yields without added stress
- Training plants for even canopy growth
It offers strong benefits with minimal downside.
Quick Summary
- LST stands for Low Stress Training
- Gently bends branches without damage
- Reduces apical dominance
- Excellent for autoflower cannabis
- Low risk and beginner-friendly