Trichomes & Harvesting

Thc247

Well-Known Member
Hi again, I'm stumped again. I had one plant that i chopped 2 weeks ago with 20% amber. Now the other plants are just stubborn and now they are at 71 day into flowering and 84 days since i shut the lights out for 2 days to trigger the flowering stage. They are purple kush grown in FF soil. I stopped giving them nutes about 23 days ago. Most of the plants are all cloudy and no sign of going amber. 18 days ago i did a 2 days lights out so i can get more trichomes but now the plants are not turning amber...is it because of the lights out or is it because i stopped giving nutes?? Oh and the plant that i did harvest....are the leaves suppose to be brown?....I thought all buds are suppose to be green and where is the purple in the purple kush. Yes this is my first grow and i am stumped at the end...atleast i get to smoke one plant until i figure it out,...thanks for any help.
View attachment 2134293View attachment 2134294these pics of the purple kush that is so brown.
View attachment 2134296these are the stubborn plants
i would take them down
 

Leandrobcool

Active Member
image.jpg image.jpg Hello everyone this is my first grow, I flushed them 5 days ago do u think they r ready for harvest or I should a bit longer?
 

Fease

Well-Known Member
auto flower or not a little dark period can help prep the plant for harvest. Some ppl do it, some don't...
 

Leandrobcool

Active Member
Thks for info, I just have one more question the lower buds r smaller, should I harvest by sections to fatten up the lower buds?but to do so without breaking the branches or the main stem...
 

laubs

Active Member
Thks for info, I just have one more question the lower buds r smaller, should I harvest by sections to fatten up the lower buds?but to do so without breaking the branches or the main stem...
Yeah trim from top down. give you a little extra herb
 

randomgrow

New Member
This has been the most helpful and informative thread on trichrome color and harvesting I've come across. It appears that I'm nearing the end of my first grow and I'm stressing over harvesting too soon or too late. I'm growing two strains. Heavyweight Fruit Punch (~8 week flowering time/first flower 5/6) and Super Lemon Haze (~9 week flowering time /first flower on 5/10). Here are some images of the trichrome and buds. Thoughts?

1.png5.png 8.png 9.png big bud fruit punch.jpg fruit punch.jpg Super Lemon Haze.jpg all plants.jpg
 
Last edited:

laubs

Active Member
This has been the most helpful and informative thread on trichrome color and harvesting I've come across. It appears that I'm nearing the end of my first grow and I'm stressing over harvesting too soon or too late. I'm growing two strains. Heavyweight Fruit Punch (~8 week flowering time/first flower 5/6) and Super Lemon Haze (~9 week flowering time /first flower on 5/10). Here are some images of the trichrome and buds. Thoughts?

View attachment 3439499View attachment 3439500 View attachment 3439501 View attachment 3439502 View attachment 3439504 View attachment 3439505 View attachment 3439506 View attachment 3439507
Looks nice look for clear trichs very slight Amber grow on!
 

laubs

Active Member
Harvesting your weed based on trichomes is probably the easiest way for most growers to harvest as close to peak harvest as possible.


The difficulty in the method comes with how to determine the state of the trichomes and what each state means.
If you have the equipment needed it is however very easy and with experience it gets even easier.


To explain how to harvest by trichomes properly I will go into detail as to how to determine when trichomes are at their peak and which substances these trichomes contain, which are desirable and which are not.






The first thing you need to know is that there are 3 "states" in a trichomes development.




The first state is clear. Clear trichomes contain precursor cannabinoids (cannabinoids are the different substances in cannabis).
These precursor cannabinoids are not psychoactive (they do not produce a 'high') yet and harvesting clear trichomes will not give you a proper harvest.




The second state is cloudy/milky. Cloudy trichomes contain fully realized THC (the by far main contributing substance in any cannabis high).
You want to get as close to 100% cloudy trichomes @ harvest to get the most potency out of your plant. It's impossible to get 100% cloudy trichomes, since trichomes are always being produced and are always maturing, even after harvest the trichomes will continue to develop.




The third state is amber. Amber trichomes contain degraded THC --> CBN. CBN represents a loss of 90% potency (from THC).
CBN is not desirable in any harvest, since it not only represents a huge loss of potency but research into the substance has also shown that CBN does not produce a high like THC does, CBN produces a more sickly feeling not a true high.




Understanding the difference between clear - cloudy - amber trichomes is essential in getting a proper harvest with a peak potency.




This image is a good helper to remember the differences:







To understand how substances change and are developed in cannabis you will need to read extensively on each substance to understand what each substance does and how they affect each other.


This image is helpful in getting a vague knowledge of substances in cannabis and how they develop:









I will not go deeper into what each substance (CBG, CBD, CBC, CBN, THCV etc.) do, suffice to say they all play a part in the cannabis high, albeit a minor part for most of them, since THC is the main factor in a cannabis high.
Some provide pain relief, some reduce muscle spasm, the list goes on and research is still being done to figure out all of the benefits of these substances.


I can however post an image that explains rather well which effects the substances have on the human body:













Trichomes are of course not the only indicator of when to harvest.
There are other factors that should be taken into account when determining when to harvest.


Calyxes on the plant will swell up, these swollen calyxes are a sign of maturity.
The pistils (what some new growers call hairs) will change colour (often to an orange tinge) and recede into the calyx.
Receding pistils are also a sign of maturity.
Then there is the overall look of the plant. Many experienced growers simply go by this factor, they can determine peak harvest just by looking at the plant and seeing how it looks from afar regarding colour tinge and the look of the calyxes.


All these factors should be taken into account when harvesting. All of these factors usually align when peak harvest approaches.






The best way to check how the trichomes on your plant are doing is by means of a loupe or a microscope.
I would recommend getting ones that can at least go to 60x magnification.
Getting one that can go to 100x would be even better, but the more magnification the more cost.


All you have to do is take a small sample of a leaf with trichomes on it, or if you have a loupe or a USB microscope simply look at the trichomes on the plant to determine their 'state'.
It's important that you check all over the plant, since trichomes will usually develop and produce faster at the top(s) of branches and slower and the bottom of the plant.


Some people choose to harvest the tops first and let the bottom nugs grow a bit more to let the trichomes mature and develop further but also to let the buds fatten up more. It's a judgement and preference call really.




It's almost impossible to harvest without at least some amber trichomes (and some clear), keeping the amber trichomes to the minimum is key if you want maximum potency out of your plant.
Usually if you are careful and watchful you will end up with around 5% clear trichomes, 10% amber and 85% cloudy trichomes.
That is a very reasonable % split and is what you should be aiming for.









References & sources:

http://montanabiotech.com/

Marijuana Chemistry:
Genetics, Processing And Potency
Great thread! Cleared up many questions. Thanks
 

Sunspot

Member
This is a excellent thread, it proves to me in the past I have probably pulled plants way too early. Had I know about the trichs in the past I'm sure it'd of made a huge difference.

That said this is my first time using this method and while I do have a microscope it is tough to tell colour on but I saw a few amber and clear ones for sure. Using my zoom on a camera things look much more cloudy so now I'm not sure where I'm at.
I have a few pics of different areas, what would others do if they see what is in my pics?
 

Attachments

laubs

Active Member
This is a excellent thread, it proves to me in the past I have probably pulled plants way too early. Had I know about the trichs in the past I'm sure it'd of made a huge difference.

That said this is my first time using this method and while I do have a microscope it is tough to tell colour on but I saw a few amber and clear ones for sure. Using my zoom on a camera things look much more cloudy so now I'm not sure where I'm at.
I have a few pics of different areas, what would others do if they see what is in my pics?
Cloudy is good with a touch of Amber looks like your ready
 

Sunspot

Member
That is what I was thinking, it definitely looks and smells ready too. I was kinda expecting a couple of weeks more though as it's been just over a month of flowering but it does look the pa rt.
 

Fease

Well-Known Member
just over a month?!? What genetics, cuz that is fast. Really at a minimum I've never seen less then 7 full weeks
 

Sunspot

Member
It's a Nirvana seeds Bubblicious. Even they state expect around 60 days of flower. I'm growing it outdoor but bringing it in at night for its 12\12 and have been doing this since may 21.

It is showing all the right signs though with the sugar leaves starting to curl upwards as well. Some of the bottom nugs are not ready but the top two thirds are looking good.

Only thing I can think of is it may have turned before I started bringing it in.
 
Top