One Top, No Train Method

Greenman71

Active Member
I've been growing for about ten years now and I have always kept my plants in flower for weeks upon weeks, topping multiple times and LSTing my girls to make an even canopy and get as many tops as possible. But recently I have been experimenting with various other methods and seeing just how effective my maximum effort grow style was benefiting my grows. Turns out not so much. By that I mean, not as much as you'd think, considering how much time and effort I put in.

So my last two or three grows I have been doing NO TOPPED plants and ONE TOPPED plants and seeing how they develop and what kind of yield I get compared to my long veg plants. Yes, there's a difference in yield, of course there is, but when you factor in my time as a grower, the electricity used for lights, the extra nutes and the time they spend taking up a slot, I just don't think the difference is as much of a pay off as some people might think.

Some other interesting things I've discovered: by not topping until the 9th or 10th node, my plants shoot through their veg stage to sexual maturity super fast. Seems like as soon as I put them in their final pot, they are ready for their single top and then the flower room. I've also found that my plants just naturally seem to form an even canopy, without requiring much manipulation of their branches. Mainly all I do is bend them slightly sideways so that there isn't as much overlap and shadowing from the upper branches onto the lower branches. They take this sideways shifting very well and do not even require tying to get them to bend slightly into the open spots. All I really do besides the single topping is defoliation when the plant gets too bushy. And when I do that, I do it all at once, stripping them down to 2 to 4 big fan leaves per branch, and then I leave them alone to recover.

I thought this growing method might significantly impact my yields, and it does to a degree, but I am moving plants through their entire life cycle so quickly that I am ending up with MORE bud in the same amount of time as I had with my long veg times. I am also able to fit MORE of these smaller, more compact plants into the same amount of grow space. And they are growing bud from bottom to top, with closer internodal spacing, so I'm not wasting a month growing two feet of branch that I am just going to strip bare because they aren't getting enough light. Shorter plants with lower lights means light penetration is much improved from bottom to top. My plants also seem more vigorous and produce stickier, harder buds. Maybe because they are smaller and younger...?

The plants I did not top at all are also doing surprisingly well, although I think a single topping is superior, mainly due to the central cola getting tall enough at times to force me to back off the lights. I think from now on, I'll just do a single topping somewhere between the 8th and 10th node, and then let them go. I like the way that central spire gets nutty big, but it isn't practical.

Anyway, just wanted to share this, and see what the rest of ya'll think. Have you done this type of growing, and what did you think of the results?

Thanks for reading!

Photos included are of a few of my current plants in flower, topped once and non-topped. I'm sure you can tell which is which.
 

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MtRainDog

Well-Known Member
I prefer not topping for many of the reasons you cited. It's "faster" if you're trying to go seed to harvest as quickly as possible. But there's a couple other things I like too. It let's me see the plant's unaltered, natural expression and structure. Not all plants respond to topping well. I've seen plants take on a more leafy disposition if they've been topped a few times, but left un-topped will look quite different. Not all strains, but definitely some will behave differently.
 

Greenman71

Active Member
Thanks, MtRainDog. I think back and it's funny how much topping and training is stressed in our hobby. It never occurred to me to just let them go and do what they want to do naturally. It's very educational, and lets you understand exactly what it is you're doing to them when you top and train. I've also seen a couple strains that seem far healthier and more vigorous just from being left the fuck alone. I used to joke that gelato and grandaddy purps hated me, but when I left them be and just gave them minimal training, they suddenly started growing with much more vigor. People really should be told that doing minimal training is a viable option, and that it can be beneficial with some strains. That some strains actually hate being topped and trained. I'm going back now to some strains I've never had much luck with and growing them again just to see if it was my overzealous training that made them turn out like shit.
 

farmerfischer

Well-Known Member
Topping for yeild depends on strain.. ive had plants yeild way more left alone and not top and ive had strains yeild more when top compared to the same strain not topped.. it boils down to genetics and breeder imo..
 

effexxess

Well-Known Member
I'm not doing any topping, also as a test.

From the looks of this study, it's not so bad. Especially when factoring in effort, veg time, etc.


tldr: "The results revealed that pruning the plants twice during cultivation was the optimal practice for increasing yield, and other treatments decreased or did not affect yield quantity."

plants-10-01834-g001.jpgplants-10-01834-g006.jpg

Shape Matters: Plant Architecture Affects Chemical Uniformity in Large-Size Medical Cannabis Plants
 

Greenman71

Active Member
Thanks for posting that comparative study, effexxess. Seems doing nothing is almost as good as some light defoliation and pruning. The difference is pretty negligible, though, it seems. Might as well just keep it as simple and easy as possible. One topping, some defoliation, and leave it at that. Probably do much better just concentrating on your grow parameters like light, temp, Ph, etc. than trying to contort your plants into some mystical high yielding configuration.

I will say, however, that there's a noticeable difference in when you top and when you put them into flower. I topped a few at the fifth node and flowered shortly after, and the plants were significantly smaller and lower yield than when I vegged them until 10th node, topped at 10 and put them in flower. Topping and flowering at 10 produced much bigger plants and much larger yields. Sometimes its not just what you do but when you do it!
 

hotrodharley

Well-Known Member
The problems start when people top endlessly. Topping can be used to slow vertical growth for a number of reasons. But it’s easy to go overboard. Plus some top far too long and don’t give adequate time for the new stems to elongate before flipping. Then there’s often disappointing results.
 

SuziBlu

Member
I've been growing for about ten years now and I have always kept my plants in flower for weeks upon weeks, topping multiple times and LSTing my girls to make an even canopy and get as many tops as possible. But recently I have been experimenting with various other methods and seeing just how effective my maximum effort grow style was benefiting my grows. Turns out not so much. By that I mean, not as much as you'd think, considering how much time and effort I put in.

So my last two or three grows I have been doing NO TOPPED plants and ONE TOPPED plants and seeing how they develop and what kind of yield I get compared to my long veg plants. Yes, there's a difference in yield, of course there is, but when you factor in my time as a grower, the electricity used for lights, the extra nutes and the time they spend taking up a slot, I just don't think the difference is as much of a pay off as some people might think.

Some other interesting things I've discovered: by not topping until the 9th or 10th node, my plants shoot through their veg stage to sexual maturity super fast. Seems like as soon as I put them in their final pot, they are ready for their single top and then the flower room. I've also found that my plants just naturally seem to form an even canopy, without requiring much manipulation of their branches. Mainly all I do is bend them slightly sideways so that there isn't as much overlap and shadowing from the upper branches onto the lower branches. They take this sideways shifting very well and do not even require tying to get them to bend slightly into the open spots. All I really do besides the single topping is defoliation when the plant gets too bushy. And when I do that, I do it all at once, stripping them down to 2 to 4 big fan leaves per branch, and then I leave them alone to recover.

I thought this growing method might significantly impact my yields, and it does to a degree, but I am moving plants through their entire life cycle so quickly that I am ending up with MORE bud in the same amount of time as I had with my long veg times. I am also able to fit MORE of these smaller, more compact plants into the same amount of grow space. And they are growing bud from bottom to top, with closer internodal spacing, so I'm not wasting a month growing two feet of branch that I am just going to strip bare because they aren't getting enough light. Shorter plants with lower lights means light penetration is much improved from bottom to top. My plants also seem more vigorous and produce stickier, harder buds. Maybe because they are smaller and younger...?

The plants I did not top at all are also doing surprisingly well, although I think a single topping is superior, mainly due to the central cola getting tall enough at times to force me to back off the lights. I think from now on, I'll just do a single topping somewhere between the 8th and 10th node, and then let them go. I like the way that central spire gets nutty big, but it isn't practical.

Anyway, just wanted to share this, and see what the rest of ya'll think. Have you done this type of growing, and what did you think of the results?

Thanks for reading!

Photos included are of a few of my current plants in flower, topped once and non-topped. I'm sure you can tell which is which.
The problems start when people top endlessly. Topping can be used to slow vertical growth for a number of reasons. But it’s easy to go overboard. Plus some top far too long and don’t give adequate time for the new stems to elongate before flipping. Then there’s often disappointing results.
 
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