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Resources for Growing Quality Medical Marijuana

Trichomes

Trichomes are small appendages that look like hairs. They are produced by marijuana, and other plants. Female marijuana plants produce certain trichomes that are a rich source of THC. These trichomes start out clear, turn a milky color, then turn amber (light brown).

Picture 1

The trichomes in picture 1 are clear. After the plant has flowered, the trichomes start to turn a milky color (picture 2). In the later stages of flowering, trichomes will turn to a light brown color (picture 3). The amount of time required to get to this point depends on the marijuana strain and the growing conditions.

Picture 2

In picture 2 you can see the stems have started to turn from a clear color to a milky translucent color. For maximum THC content and a more cerebral high, harvest your plants when a majority of the trichomes on the plants in your garden are a fully milky translucent color.

Picture 3

You can wait until most of the trichomes have started to turn amber, but the resulting marijuana will produce more of a body stone than it would if plants were harvested earlier. The trichome in picture 3 is about 90% amber, with just a trace of the milky translucent color it previously possessed.

After the trichome is fully amber in color, the THC starts to degrade. This makes it very important to harvest marijuana at the time before the trichomes have attained a total amber color. If not, the marijuana will not be as potent as it could have been.

On your first harvest, if you are having a hard time judging when to cut the plants down, a good rough guide as to when to harvest is to wait until you see the first sign of amber trichomes on each plant.

Note: that trichomes are too small to be seen properly with the human eye. To see them properly, you can use a 10x magnifying glass or a 20x to 70x pocket microscope. The greatest concentration of trichomes can be found on the growing buds.

See this for information about harvesting marijuana

 

 

 

 

 

 

 

 

 

 

 

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images: by joop dumay, from marijuana horticulture
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