When to Stop Training Cannabis Plants
Training is a veg and early-flower activity. The plant tells you when it is done, and ignoring that signal costs real flower.
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.
Keep reading
Legal notice: We do not promote or encourage breaking the law. This site is for adults 21+ growing in states and jurisdictions that have legalized cannabis cultivation, and who are following all legal growing guidelines, plant count limits, and permit requirements that apply to them.
