Texas Kid

Some guy with a light
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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
 
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!
 
S

Stackin Paper

Guest
Yeah thats it right there Jah, remember when she smoked in the coffee shop and it fucked her right up, gave pot a bad name imo.
 
986
28
Yeah thats it right there Jah, remember when she smoked in the coffee shop and it fucked her right up, gave pot a bad name imo.
She gave weed a bad name but i know she started smoking the stuff coz she did like it:)


thats what you call a hipocrit if thats how you spell it??
 
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
 
350
28
was wondering about using a wood box instead of the brown paper bag for the intermediate stage. anybody have any issues with this idea. There is a hygrometer in the wood box steady at 50% humdidity.
 
34
8
^as long as the Rh stay that low and you air them out a few times a day, they should dry fine.
 
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.

Nice bit of info bro
 
Very good information! I am trying indoor hydro growing for the 1st time and find it is considerably different then in the dirt. My grow is completing it's 11th week in bloom and the sativa resin is Still white. I've lowered temp, decreased ppm's, lowered PH and they still aren't turning amber. I'm going to wait to harvest until they do...They will, won't they?? Very concerned; however, as I wanted to flush for 2 weeks before I harvest and would like to know how long of a window will I have once they do start turning amber. Once they start turning amber on the lower older buds, how rapid will the rest follow? 2-3 days would wreck my 2 wk flush but did get some Clearex to speed that up, if necessary. Does anyone have information on this stage??
 
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