LST vs apical pruning indoors: how to choose according to your wardrobe and your objective (and when not to do it)
LST vs apical pruning indoors It is not about “which one gives more grams”, but about fitting the plant into your closet without losing health or rhythm. If you have a low height, a powerful lamp and you care about the uniformity of the canopy, a technique makes it easy for you; If you want to multiply main tips and build a more bushy structure, the other one may be better. In this guide we take it down to concrete decisions: space, genetics, cycle phase, margin of error and realistic goal.
Quick decision: choose in 60 seconds
If you identify with this, prioritize LST
- Your closet is just too high and you prefer to control the stretch without stopping.
- You want a flexible technique: you correct as you go without “points of no return.”
- You work with fast cycles or you don't have any vegetative leftovers.
- You are looking for a flatter glass to make better use of the light.
For guidance and order indoors, simple tools help you: nylon cable ties (to set without complications), laminated steel tutors (to provide direction and support) and, if you want pro level, a SCROG type mesh.
If you identify with this, the apical fits you better
- You want to “duplicate” the main tip and force branching from above.
- You have healthy plants, a good environment and room for 3–7 days of recovery.
- You want to create several main colas before flowering.
- You plan to combine with guiding or mesh to keep the canopy uniform.
If you want to expand, the blog has the technique explained separately: Apical pruning or topping.
| Your situation | best bet | why |
|---|---|---|
| Low rise and unpredictable stretch | LST | You control the form without slowing down the pace and lower the “peak” height. |
| Long vegetative and very vigorous plants | Apical + guided | You create structure and then distribute; you get more productive tips. |
| You are looking for simplicity and margin of error | LST | If you make a mistake, rectify it without having made a cut. |
| You want a flat canopy for SCROG | Both | The apical multiplies points; The guide places them where they are interested. |
What is LST and what changes inside the plant
LST (Low Stress Training) is low stress training: you bend and fix branches so that the growth is distributed. Indoors this has a direct effect: more tips receive “good” light and fewer areas are left in the shade. The key is that you do not cut tissue, so the plant usually continues growing without the typical stoppage of aggressive pruning.
If you want the full explanation, Grow Industry also details it in LST Pruning (Low Stress Training). Here we lower it to practical use in the closet.
Real advantages of LST in cabinet
- Height under control: you reduce the dominance of the main tip without cutting.
- More uniform canopy: better use of light and fewer “privileged points”.
- Low risk: If you bend too much, release a little and correct it.
- Compatible with many situations: especially useful when the height margin is small.
What can you go wrong with LST
- Force dry: If the stem is rigid, bending suddenly increases the risk of cracks.
- Set wrong: If you don't anchor well, the branch returns to its position and you lose your job.
- Forget about tracking: training is progressive; requires readjustments.
Tools that simplify LST
- Black EDM Nylon Cable Ties to set and organize the guidance.
- Plasticized steel tutors to support and open the structure without damaging stems.
- Meliflor textile SCROG mesh if you are looking to distribute tips horizontally with a grid.
What is apical pruning and what you can expect after cutting
Apical pruning (topping) consists of cutting the growth tip to stop the vertical advance and push the plant to distribute energy into lateral branches. Indoors it is usually used to build a wider plant, with several main colas, and prevent a single tip from dominating the rest.
What the apical does well
- Multiply main points: Instead of one dominant tail, you start building two (or more with repetitions).
- Control the “peak” height: the plant stops stretching only upwards and opens.
- Facilitates canopy management: especially if you then guide or use mesh.
What to assume
- growth stop: The plant usually spends days recovering and reorganizing growth.
- More environmental demands: If your climate and irrigation are fair, the stress is more noticeable.
- If you go too far, you pay: several prunings without enough time between them can slow down the whole.
If you want to expand with an overview of techniques, it is also useful Complete marijuana pruning guide.
Depending on your closet: height, light footprint and number of plants
Low cabinets or with little distance to the lamp
When available height is the bottleneck, the most valuable is be able to lower tips without stopping growth. Here progressive guidance usually wins: by bending and fixing, you keep the cup at a uniform height and reduce the risk of a tip getting too close to the light.
If you also want uniformity without readjusting every day, a very practical solution is to switch to SCROG when you have several active branches: SCROG Cultibox elastic mesh (for common closets) or Meliflor textile mesh (if you want a 15 x 15 cm grid and reuse it in several cycles).
Medium closets: space to build structure
In a standard wardrobe, the decision is rarely “just one thing.” Many growers obtain very good control by combining: an early apical to create two main arms and smooth guidance to open the plant and level tips. The trick is to respect recovery and not pile on stress by system.
Large closets: when the challenge is to fill the surface
If the difficult thing is to occupy the space uniformly (and not so much the height), the apical can be an engine to create more productive tips. Even so, indoors the distribution rules: if you don't place those tips well, you will end up with shadow areas and unbalanced flowers. Here a SCROG mesh is usually more “decisive” than the technique you choose at the beginning.
To understand the approach well, you have a specific article on the technique: SOG and SCROG cultivation.
Depending on your objective: production, quality, ease or speed
Goal: uniform canopy and consistent quality
If your priority is that all the tips receive similar light (and that the harvest is homogeneous), the most direct path is usually: guided + mesh. Here the debate LST vs apical pruning indoors It is resolved like this: it does not matter which way you “start” the work, the important thing is that you end up with a flat and aerated glass.
In practice, guidance with simple fixings is usually enough at first, and when the plant already has several useful branches, the mesh takes over to distribute them into grids.
Goal: more main tips
If you want a bushier plant, with several large colas instead of one dominant one, apical makes sense. Of course, for these points to compete “equally”, heights must then be leveled. If not, one of the two new branches will dominate again.
At this point, support and direction elements are very useful: laminated steel tutors to open structure and yoyo tutor in flower to support and relocate branches that carry weight.
Objective: minimal complication
If you are looking for a clean and simple crop, gentle guidance is usually the option with the least “scariness”. You start early, make small adjustments, and stop when the canopy is reasonable. In addition, you can use a mesh to help and forget about tying branch by branch.
Objective: go fast and not slow down the cycle
When you don't want to add recovery days, prioritize uncut techniques. Apical training may be worth it if you have vegetative margin and the plant is strong, but if you are on a tight schedule, progressive training is better.
When NOT to do it: scenarios where it pays not to touch anything
Indoors, many times the problem is not the technique, but when and with what state applies. In these cases, the most profitable thing is usually to stabilize the crop before training or pruning:
- Plant with visible stress (stopped growth, decayed leaves, persistent strange color).
- Misadjusted irrigation (alternating drought and flooding).
- Unstable environment (spikes of heat/cold or humidity out of control).
- Active pest or unidentified damage.
- Imminent transition to flowering if your plant still does not have clear structure and health.
Rule of thumb
If you don't trust the general condition of the plant today, don't add extra stress "just because." First, stable routine. Then, training or pruning.
How to apply LST step by step without splitting branches
1) Start when the stem is still flexible
The best LST is the one done with little force. If the plant is already very lignified (hard stem), it forces you to force. Start when you see that the plant responds well to vegetative growth and has branches that are worth guiding.
2) Anchor with simple tools
If you want something practical and fast, use nylon cable ties as fixation and takes advantage of the edge of the pot. If you prefer rigid support to open structure, add laminated steel tutors.
3) Small and frequent adjustments
The typical mistake is wanting to “get it done” in an afternoon. Indoors it works better to think about micro-adjustments: today you open a little, tomorrow you level the tips, the day after you reposition them. This keeps the plant moving.
4) Keep the canopy level
In the debate LST vs apical pruning indoors There is a constant truth: performance skyrockets when you get several tips to be at a similar height. The light performs better, and the flowers tend to come out more uniform.
5) In flowering, use support and direction
When the buds are heavy, don't risk it. The yoyo tutor It is useful for supporting fragile branches or repositioning a branch towards a hole where it receives more light. And if you work with mesh, let the structure “command” the shape.
How to make a meaningful apical: fewer cuts, better structure
Healthy plant first
The apical rewards vigor. If your plant is “at half throttle”, the downtime will be more noticeable and will be longer. Make sure the growth is stable before cutting.
The cutoff point must make structural sense
It's not about cutting for the sake of cutting. Choose an area where there are already side branches capable of becoming main colas. If you cut too soon, the plant is small and the result is short; if you cut too late, the recovery can mess up the schedule.
After cutting, avoid stacking stress
One of the common mistakes is: apical today, aggressive leading tomorrow, change to flowering last. Give the plant a margin and then start leveling. That posterior leveling is what turns the apical into a real improvement.
If you want to see the detailed approach separately, go back to Apical pruning or topping.
Combinations that work indoors (without complicating your life)
Early apical + gentle guidance
It is one of the most balanced combinations for medium-sized wardrobes: you create two main arms and open them with fixings. If you then see that one branch is dominating, you lower it with LST and keep the canopy even.
Guided + SCROG
If uniformity is your thing, mesh becomes “the plan.” A practical option for regular closets is the SCROG elastic mesh. If you prefer a concrete and reusable grid, the Meliflor textile SCROG mesh It is designed to guide branches horizontally.
Support in flowering: avoid damage when heavy
When the weight goes up, your goal is no longer just to “shape,” but to avoid bending or crossing branches, which is when breaks and shadowed areas appear. Here the yoyo tutor and the laminated steel tutors They save you scares, especially in plants with long branches or dense flowers.
Typical errors that reduce your harvest
Do the “just because” technique
Neither training nor pruning is mandatory. Indoors, many times the key is a stable crop: consistent watering, good weather and a tidy crown. If the plant is already balanced, touching it may be worse than leaving it alone.
Search for the “maximum” without margin for recovery
The obsession with getting more tips can end in a slow plant. Better a few well-executed decisions than a chain of interventions. In the comparison LST vs apical pruning indoorsWhat makes the most difference is timing and consistency, not aggressiveness.
Let the canopy decompensate
If one or two tips go up, they steal light and vigor from the rest. The solution is usually simple: lower those tips with guidance and let the others “catch up.” This is especially important just before the transition to flowering.
Checklist before deciding: 10 questions that put you on the right path
- How much actual height do you have from the pot to the light with a safety distance?
- Is your plant actively and steadily growing this week?
- Do you have vegetative margin if the plant slows down for a few days?
- Do you want a flat crown or do you prefer a structure with marked main tails?
- Are you going to use SCROG mesh or just point guidance?
- Does your variety stretch a lot when changing to flowering?
- How many plants are you going to put in and how much space will you have per plant?
- Do you feel like monitoring and readjusting every 24–48 hours?
- Do you have flowering support (mesh, yo-yos, stakes) if it carries weight?
- Is your main goal uniformity, quantity, speed or simplicity?
If you answer “no” to 2 or 3
Prioritize stability and gentle training. Most problems come from adding stress when the plant is not ready to party.
Frequently asked questions
What technique usually fits best if my closet is just tall?
In most base cabinets, progressive guidance allows height control without slowing down. If you do apical, you will usually need to level afterwards to prevent a new tip from dominating.
Can I mix apical and guided in the same cycle?
Yes. In fact, many “round” structures are born like this: a cut to create two main points and then gentle adjustments to open and distribute.
When is it better to do nothing?
When the crop is not stable. If you see signs of stress or growth is not constant, adding an intervention usually worsens the result.
What helps me keep the canopy uniform without tying it every day?
A SCROG mesh. For typical closets you can look at the SCROG elastic mesh. If you prefer guidance with a 15 x 15 cm grid and use in several cycles, the SCROG textile mesh It's a solid option.
What do I do if a branch expires during flowering?
Immediate support. The yoyo tutor allows you to support weak branches or redirect them to receive more direct light. Complement with laminated steel tutors if you need a firmer structure.
