Quote Originally Posted by LOC NAR on probation
Perpetual harvest.

A Sea of Green is when you have your room split into half and a harvest every month or even split into 2 weeks. It is ment to give you a harvest at shorter intervels with one room rather than waiting 2 to 3 months to harvest.
What? No that's just wrong. Perpetual harvest is a method of crop rotation so that you have a harvest ready every few weeks. It is a called (wait for it)... Perpetual Harvest. SOG is a closer to what Willy181 described where plants are spaced to maximize canopy and thereby yield. Here is a cut 'n paste from this useful article: An Overview of Cannabis Training (ScrOG, SoG, FIM, Supercrop, LST, etc.)
-------------------------------------------
The Sea of Green method does not involve training the plants or changing levels of auxins like what we've talked about before. Instead, SoG allows a grower to maximize a variety of cannabis while at the same time trying to dial in a strain/method that allows for the most grams per watt.

The SoG method involves growing many plants in smaller pots. Usually this is done with clones. There are quite a few different growers who utilize the SoG method in these forums. SoG can be done on smaller scales in containers such as cut 20oz soda bottles, or it can be done by utilizing taller, 1/2-3 gallon containers, with less width. By allowing for more plants under the light, one can grow many different strains without worrying about the canopies interfering with each other as much.

The idea behind smaller SoG grows is to get bud from the soil to the tip of the plant. This is a strain-dependent characteristic, but is often a desired one from SoG growers.

Let's take a look at the pros and cons of this method.

-Pros
1. Easier to grow more strains
2. Clone friendly
3. Can potentially mean increased yield

-Cons
1. Higher plant count
2. Not good for all strains
3. More time-consuming

SoG is great for some who want variety and a bunch of colas sitting in their flowering chamber. However, the small size and number of plants is just too troublesome for some. Now that we've looked at the main types of training, you can make your own decision and go out there and start maximizing your yield.