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When to Stop Training Cannabis Plants

By The Budometry TeamPublished Updated

Training is a veg and early-flower activity. The plant tells you when it is done, and ignoring that signal costs real flower.

Part of our pillar guide: Plant Training, Pests and Troubleshooting

The cutoffs

  • Topping: stop 1-2 weeks before flip
  • LST and tucking: stop around week 2-3 of flower
  • Supercropping: stop at week 2 of flower
  • Heavy defoliation: stop at week 3 of flower
  • Lollipopping: stop at week 3 of flower

Why the stretch is the boundary

During the first two to three weeks of 12/12, stems are still growing and flexible and the plant recovers quickly. Once the stretch ends, energy goes entirely into flower production and every wound is a diversion.

What is still allowed late

Supporting heavy colas with stakes or netting, removing dead or moldy material, and pulling leaves that are already yellow and loose.

Frequently asked questions

My plant is touching the light in week five, what do I do?
Raise the light, dim it, or lower the pot. Do not bend a lignified stem in week five.

The full guide on this topic

Plant Training, Pests and Troubleshooting

Topping, LST and SCROG explained, plus how to identify and stop spider mites, fungus gnats and powdery mildew, and how to read leaf symptoms correctly.

Keep reading