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Force Flowering Outdoor Marijuana Plants

Posted: Sat Aug 14, 2010 2:13 am
by Weedguru Higher
Force Flowering Outdoor Marijuana Plants

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Whether you call it blooming, flowering, force flowering, induced flowering , or photo-period manipulation it is all the same thing. Marijuana plants measure the dark periods and light periods of each day and change their growth patterns based on that information.

The biggest example is how plants will put their full energy into a reproductive effort in preparation for the coming winter. The plants know when to do this by measuring the amount of darkness in each day.

The nights get longer and longer in late summer and heading into fall. At some point the plants instinctively know to begin their reproductive efforts. It is exactly this response to the dark period that will give you control over force flowering.

Some plants are very particular, but most plants will begin flowering when they begin getting 12 hours of uninterrupted darkness every night, and always at the same time each night.

Should you want to flower your plant outdoors before the required 12 hours of darkness you can do what is called 'force flowering'

To do this you must create regular and strict dark periods of uninterrupted light. This effect can be created by bringing the plants inside and putting them in a dark closet. Or if you cannot move your plants then you can cover them with blankets, a large garbage can or barrel depending on their size.

I cannot stress enough that during the flowering stage, the dark period should not be violated by normal light. It delays flower development due to hormones in the plant that react to light. They should never receive more light than what they would receive from moonlight.

A strict schedule of covering the plants and uncovering them at the same hour morning and night for 2 weeks will start your plants to flowering. In late summer, with fall approaching, it may be necessary only to force flowering the first two weeks, then the rapidly lengthening nights will do the rest.

Compiled using these articles

http://www.seed4weed.com/grow/flowering.html
http://www.jasons-indoor-guide-to-organ ... rcing.html

Re: Force Flowering Outdoor Marijuana Plants

Posted: Sat Aug 14, 2010 2:31 am
by SpRi7e
see the only problem with doing this is that it takes a LOT of continuous effort to do that with outdoor plants. Bring them in early for 2-3 hours then putting them back out..or wake up before sunrise every morning to move them. The blanket/covering concept is easier, but it also requires getting going to the grow site at the same time twice a day and making it more detectable by other people.

I'd say this is basically a NEED to do sort of thing or the plants won't flower right. If you don't have the time for 2 weeks then it might mess with the hormones
I cannot stress enough that during the flowering stage, the dark period should not be violated by normal light.
It's the same concept, if you do it for a week and it starts the hormonal change, then it gets reverted back, it will affect it.

Re: Force Flowering Outdoor Marijuana Plants

Posted: Sat Aug 14, 2010 2:36 am
by Weedguru Higher
Very good points Spri7e.

It should be mentionned that this is obviously not very practical for the guerilla grower...it's more of an easy access in your own backyard thing.