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Good info, thanks. A question on the subject for anyone who may know:

Had Psychosis, cheese and Tangerine Dream growing together. The Psychosis and Cheese were cropped at the same time at 68days after looking at trichromes under the microscope, saw them going milky, started flush, by end of flush they were about 70% Amber, 15% brown and 15% still milky-ish. That was about perfect. The (mostly Sativa) Tangerine Dreams clearly needed longer than the (mostly Indica) Cheese and Psychosis. But they looked as if they were still in Veg in some places... Ie the buds were very thin and wispy, they had grown to over 2 metres (started at about 1m), I trained them to get maximum light, they seemed to respond well with the bent over tops almost horizontal and producing lots of buds vertically up towards the light. But they still had tops that seemed to be growing new leaves, stalks and buds but very thin etc.
I didn't know whether to sack it and just go with the Psychosis clones (that was awesome!), which I was going to do after anyway, or leave them going as it was still about 10 weeks. For pure Sativa I know that may very well not be long enough. But reading from 'Barney's' website (I got the seeds from Barney's on a previous visit) it says Tangerine Dream has a 'relatively short' 70 day flowering cycle.
There was no way 70 days was going to be enough.

I was wondering if anyone else had tried Tangerine Dream in Coco and how long it took them to fully flower?

Thanks in advance, and great info here! Thanks!!

Gm

IMO it sounds like the Tangerine Dream started to reveg. Did you accidentally interrupt the 12/12 dark cycle?? What you are explaining with the TD is the exact same thing that happened to me before, it started growing stems and leaves around the 5th week of bloom then once it gets back on flower it starts forming little buds on top of the new stems. Try to remember if you introduced any light during the dark cycle, if you did then thats most likely what happened. Reveg sucks.
 
If you have a plant where the top buds are swollen but the bottom ones are still small and thin do you ...
- only harvest the swollen buds and continue maturing the lower ones
OR
- harvest all of them at once regardless of how mature individual buds appear
This is exactly what I'd like to know...., but no one has responded..... I have a Blue Dream that looks ready to harvest at five weeks budding(!), almost all the trichomes are amber, but the lower buds are very small yet amber. I think I'm going to harvest the big ones at the top and let the lower smaller buds have a chance to grow bigger.... Someone who is an experienced grower told me that was OK, but would be nice to get some confirmation.
(I realize this might be an old post! but well, I'm new to the forum....)

Here's my current grow journal in micro-grows:
https://www.thcfarmer.com/community/threads/my-first-serious-indoor-grow-with-pix-and-questions.63482/
 
Harvest Your Herb
by DJ Short

There are several important points to consider when choosing the optimum time to harvest your cannabis crop. There are different factors to consider between indoor and outdoor plants. There is the difference between Sativas and Indicas in bloom duration and final effect. There is the difference between early and late harvest to encourage head to body high respectively. There is the issue of chemistry because what we are really considering in terms of the "ripeness" relates directly to the chemical nature and state of the plant at harvest. Last, but not least, is the concept of "the window of harvest", where I will begin.

The Window of Harvest
This term indicates the period during which the plant is at its optimum state of ripeness. The window "opens" when the plant is first ripe. Somewhere along the line the plant becomes over-ripe which signifies the "closing" of the window of harvest.

For most Indicas grown indoors, the window of harvest is about two weeks long * give or take a couple of days for various strains. Indoors, if going directly from an 18/6 hour vegetative light cycle to a 12/12 hour bud cycle, most indicas take about eight weeks to fully mature.

As to outdoors I can only speak from experience at the 45th parallel and the bloom times there. At the 45th parallel I've found most Indicas to be at peak harvest starting at the beginning of October, sometimes very late September, and running until the end of October, sometimes running into November during mild years or in a greenhouse. My favorite time to harvest a nice Blueberry Indica outdoors is in the second to third week of October.

For Sativa grown either indoors or outdoors, the window may be open much longer. Some Sativas take up to thirteen weeks to mature indoors. Outdoors many will go well into November and even December, if conditions are right (again, this is near or at the 45th parallel).

Head High or Body Stone?
An important consideration has to do with one's preference for a "head" high or more of a "body" high. A good head high can positively influence one's mental state much like a psychedelic; whereas a good body high is more similar to a narcotic effect. Generally, head highs tend to be more up and body highs tend to be more down. Suffice it to say that a good healthy mix of the two is a fine goal to achieve.

Sativas and early window harvests tend to be more of a head high, whereas Indicas and late window harvests tend to be more of a body high. Given this rule of thumb you can pretty much come up with what you want. That is, if you prefer a very psychedelic head high, then an early harvested Sativa might do best. If a very narcotic body high is desired, then a late harvest indicas would probably do best. For that best-of-both worlds high, experimentation with late harvested sativas and early-to-mid harvested indicas usually proves interesting.

Magnify your Buds
When we speak of various highs experienced by different products, we are noting variations in plant chemistry. The chemicals we enjoy are produced within the glandular stalked trichomes, along the surfaces of the bud flowers (calyxes), bracts, leaves and stems, starting in or around the fourth week of the bud cycle. More and more of these trichomes develop as the plant matures.

I highly recommend that the serious cannabis student acquire a 30X power, illuminated magnifier. These can be found at most local electronics stores, often for under fifteen dollars. With the aid of the magnifier one can learn more about the detail of trichome development and ripeness.

As far as trichomes are concerned, the tall ones with swollen, clear, bulbous heads are what to shoot for. The denser the concentration, the greater the potency.

The Cycle of Plant Maturity
Starting in the third or fourth week of the flowering light cycle, glandular stalked trichomes will begin to form along the surfaces of leaves, flowers, bracts and stems. At the same time, more and more flowers (also called calyxes) develop into densely-packed floral clusters.

The pistils of the young flowers are bright white and turn reddish brown with age. The pistils and flowers develop from the bottom of the bud to the top. The older, lower pistils are the first to turn reddish brown. For most basic indicas this usually happens by the sixth week in the flowering cycle. It is about this time that the calyxes begin to swell.

Calyx swelling is a major indicator of peak maturity. The lowest, oldest calyxes swell first and the swelling works its way up to the highest, youngest flowers on each bud. At peak maturity about 90% of the calyxes will almost look seeded, they are so fat. Three quarters to 90% of the pistils will have turned reddish brown as well. For a basic Indica this takes well into the seventh week of the flowering cycle.

By the end of the eighth week most of the calyxes will have swollen and a surge of trichome development has coated most of the buds. It is now that the development of a very discerning palate comes into play to determine the finest harvest time. Remember - patience is a virtue and often a discipline.

The ripening signs for most Sativas are highly similar, except extended over a longer period of time. Occasionally, some Sativas have windows of peak harvest that actually open and close. That is, for a week or so the plant may exhibit signs of peak ripeness. However, a week later the plant may have a growth spurt, which lowers the trichome-to-fibre ratio and overall potency for a little while. Usually a fibrous growth spurt is accompanied by a corresponding trichome increase. Again, time and experience are the key elements in this regard.

Changes in Chemistry
As the plant matures through its window of harvest its chemistry changes. As the window closes, the more desirable compounds begin breaking down into less desirable ones. Primarily it is THC breaking down in CBNs and CBDs.

Which particular combination of chemicals is the most desirable is purely a matter of taste and choice, developed over time and with experience. Set and setting also play an important role in determining which type of product is best appreciated.

Pleasant head highs are often desirable for social occasions, whereas a narcotic late-window Indica may work better as an evening medicinal herb. The main point is that these differences are chemical in nature and more research is needed to more fully understand this phenomenon.

Another oldy but goody form the vaults

Tex
I know this is an old thread, but just want to thank you Tex for a thorough, well-written marvelous article on harvesting cannabis!

I have four sativas here, I should say two sativa dominants (sour diesel and J-1, the strongest and stickiest most aromatic of the bunch), and two what look like hybrids because they don't stretch but grow short and bushy, especially the blue dream. The other one Trainwreck is a delicate little girl, but has developed surprisingly good buds now at the end of week 7 and still growing. I harvested the sour diesel couple days ago because it wasn't looking good anymore, it yellowed excessively and just looked like it wanted to come out or die. It was stressed for some reason. The others are looking good with big buds, the blue dream looks like it should be harvested soon. This is my first serious indoor grow, and I've only grown outdoors once with good results many years ago. I am using CFL's so maybe the proximity of the lights has something to do with the early maturation of the sativas?
I have to watch them everyday now to see when the right time is to harvest. Like you said, some look like they want to come out, and then have another growth spurt. That has happened with one of my plants. But only experience can teach when best time is, like you said.
 
Interesting. there was a program here in the Uk in which an experiment was done by injuectin pure THC into a volunteer. She felt paranoid and out of it, depersonalised and trippy. By contrast when pure cannabinoids were injected into her bloodstream she became relaxed and giggly. I should add here that she was a very inexperienced smoker but the experiment showed that marijuana works in 2 different ways. I guess that finding a balancebetween the 2 chemicals is ideal for the buzziest effect. this was the first time I had ever seen and experiment performed in this way. It clarified what us seasoned smokers have known for a long time!
Peace, harmony and a high to match!
Yes, that's what happens when they isolate and concentrate one property of an herb, there are many other things in cannabis than thc and they are harmonize each other and necessary for a balanced effect.
 

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