The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Mainline limit
ButtersStotch
started grow question 6y ago
If I have 2 months of veg left, what would be the drawbacks to mainlining to 256 colas if I’m already at 64?
Solved
Week 13
Techniques. Main-lining
likes
416fireman
answered grow question 6y ago
Congestion of 256 colas.... our shitty unstable weather. Might be a Ontario botrytis accident waiting to happen. But with adequate spacing and separation through training and some luck weather wise. Could be a huge trim party waiting to happen.
2 likes
Complain
Selected By The Grower
Fusion
answered grow question 6y ago
Only drawback you have from creating so many tops is that she won't focus on building any huge colas, builds a even canopy instead.
1 like
Complain
Fruitgrower
answered grow question 6y ago
64? looks like 32... I would leave it at 32 tbh. I think otherwise you're going to create some issuse with the roots and space and airflow. 🌱👍
likes
Complain
Similar Grow Questions
Solved
CapeShark
Nebula vs Nugbuckets Mainline?! (I understand papers could be written on this topic)
Looking for advice from all the experienced growers out there! I will be topping to create a “mainline“ in the upcoming week. Suggestions to take in Nebula vs Nugbuckets approach? 1 Northern Lights strain in 48”x48”x80” grow tent (~37” vertical grow space), Hydro, 1200 LEDX
Week 4
Techniques. Main-lining
6y ago
2
2
Solved
MicroNighthawk
"Semi Main-Lining": Should I clean up the lower small grows on my 4 main branches?
I am trying a (wrong) "semi"-mainlining... TL;DR (my Diary) 1. Trained plant into a spiral 2. Got high, topped it 3. Cleaned 2 grows/nodes per branch 4. Bent main stem to grow horizontal = 2 lower & 2 upper branches Should I clean 1-2 more nodes before flipping to 12/12
Week 6
Techniques. Main-lining
3y ago
2
1
Solved
vicisdope
Too many veggies (question re: length of veg time)?
I’ve had this Amherst Sour Diesel vegging for months. Is there such a thing as vegging for too long? Also, Miss Mia Wallace (as ive makes her) has had her share of issues from soils to nute issues and thrips. All seem to be under control. Will this impact yield?
Week 27
Other. Other
Plant. Other
Techniques. Main-lining
6y ago
1
2
Solved
SugarBoogers
Training?
How exactly should I go about this plant when it comes to training? I've not grown a fem in a while and I'm just looking for a full canopy (or as full as possible). I know about topping, fimming and tieing down the branches, but is there some other/better techniques?
Week 1
Techniques. HST
Techniques. ScrOG
Techniques. Main-lining
4y ago
3
3
Solved
PotusArg
Fan leaves during main-lining
Do you recommend leaving the fan leaves when doing main-lining, or should I remove them? My thought is that through those leaves, the plant will continue photosynthesizing more efficiently and won't experience as much stress. What do you recommend—should I remove them or not?
Week 3
Techniques. Main-lining
5mo ago
8
8
Solved
Rolland_Joynts
More or less lookin for an opinion
Hi there, I am starting my first auto flower grow (dwarf low flyer -crop king seeds). Only my third grow ever! Just curious as to what the pros prefer auto flower or photo period? And why pls Also was thinking of trying the mainline technique with the DLF any thoughts? Thanks
Plant. Other
Techniques. Main-lining
6y ago
4
3
Solved
domato
Remove leafs(defoliation) and new shoots?
After 7weeks and 3days of vegetation. And some LST. Should I remove the large leaves and the new shoots that are coming off the branch from each topbud? (For the purpose of entering more light and those "topbuds" reach the correct level)
Week 7
Techniques. Main-lining
Techniques. Defoliation
6y ago
4
5
Solved
Jok3r
Applying main-lining on Hulkberry automatic strain.
Is it safe? Or, since the lifetime of the plant is so short, better to not even think about it.
Techniques. Main-lining
4y ago
2
2
Solved
MediciGrade
As you can see, one of my plants is a few inches taller than the others. They've all been topped 3 times for 8 mains, but I'm wondering whether I should top the big plant 1 more time in an effort to achieve a more uniform canopy height before flipping to 12-12.
Week 9
Techniques. Topping
Techniques. Main-lining
6y ago
3
2
Solved
teabee
Manifold/Mainline question
I am trying mainline/manifold for the first time, I have created the 8 main colas, am at about 7 weeks of veg, I am curious if i am suppose to remove the lower growth tips? Do i remove all growth tips other than the 8 Main colas? Or just leave them?
Week 7
Techniques. Main-lining
Techniques. Defoliation
5y ago
1
1
Solved
Erasmus
Mainlining
Can someone recommend the best tutorial for main lining? This is my second grow and first high stress attempt so the more extensive and in depth the better.
Week 2
Techniques. Main-lining
5y ago
2
1
Solved
PurpleWorship
When should i cut node 2 ?
Am I right to wait longer tu cut branches and fan leaves at node 2? 2nd question : Is it ok to add dirt on the pot, since she is a bit tall? Thanks :)
Week 4
Techniques. Main-lining
5y ago
27
4
Solved
happygrass
Topping autos
Can you FIM/top or mainline autos?
Techniques. Main-lining
5y ago
2
Solved
Beangineer
Remove lower branches on this grow?
Should I just remove the lower branches or keep them? They are getting pretty heavily shaded but I rotate the grow bag daily to expose the under canopy growth. This is the only plant I have ever not been able to LST the main Cola, I opted to top it and LST'ed the lower branches.
Week 6
Techniques. LST
Techniques. Main-lining
Techniques. Defoliation
5y ago
5
3
Solved
Shagrath
I want to defoliate but when should I do it? Little by little all the time or wait until flowering stretch is over and do only one big one or something else and whats the difference in these? Thanks in advance!
Week 10
Techniques. Main-lining
Techniques. Defoliation
6y ago
15
2
Solved
EasyName
Question about mainlining
Im getting ready for the outdoor season..planing to mainline a stativa strain+indica strain. My question is: when you have already done your last topping and you're now letting your plant grow out, do you cut off the side branches growing out from the mains or do you leave them?
Other. General questions
Techniques. Main-lining
5y ago
6
5
Solved
GIR139
Transplant Before or After Training?
Just starting third week of veg and all plants have 3 or 4 nodes. I'm planning on topping and manifolding them. When should I move from 1L to 7L (final home)? Before or after I start training? I want to minimize any shock/recovery to the plant Thanks - you guys are awesome
Week 3
Techniques. Topping
Techniques. Main-lining
5y ago
1
1
Solved
AlbasDiary
Main-Lining
Hola! Estoy pensado en hacerles a una de las cuatro plantas que tengo ahora la poda Main-Lining. Voy a hacerles el último transplante. En que momento hay que empezar? Variedad de planta es indiferente? Algún consejo? Mil gracias, muy buenos humos💚💚💚
Week 4
Techniques. Main-lining
5y ago
4
4
Solved
BlueBerry7720
Trim "armpit" branches?
Growing mainline and wondering about trimming the new branches so bud growth is focused on main stalks. My last round I had one plant that I didn't trim at all-not a fun harvest. Other plants I kinda trimmed and went well. Should I get rid of them all? See last photo week 12.
Week 12
Techniques. Main-lining
6y ago
4
3
Solved
Misanthrope
Split in mainline
Noticed this split at the base of Natasha's mainline. I don't think it's getting any bigger but I'm not sure. Should I cover the opening with tape to try and keep out water/bacteria? Ziptie around the stem to prevent further splitting?
Week 22
Plant. Other
Setup. Outdoor
Techniques. Main-lining
3y ago
2
8