Sea of Green vs. Screen of Green

We There are many techniques for growing cannabis.  Sure, you can just put them in a pot and let them grow but with a little training and care, you can maximize your yields or shorten your grow cycles really easily!

What is Sea of Green?

Sea of Green, usually abbreviated “SOG,” is a method of growing cannabis that forces flowering early, while the plants are still small. The plants will have only been in vegetative state for about two weeks. This method allows you to harvest much earlier.  Basically you are packing a bunch of small plants (1 or 2 gallon pots) in your space. 

How to set up the Sea of Green Method

  1. Germinate seeds or take cuttings to create clones
  2. Grow using 18 to 24 hours of light until they reach around 10 to 12 inches in height.
  3. Space the plants out at about 1 or 2 plants per square foot, and change the lighting regimen to 12/12 to force flowering.
  4. Once a dense canopy of buds forms, trim the branches beneath and use them for clones.
  5. Harvest when you’re ready.

Pros of SOG

-Great for space limitations:  You can pack a bunch of plants into small spaces.

-Great for time constraints:  You will be working with a super short veg time which cuts weeks out of your production time.

-Bigger yields overall: With the lights hitting the main bud areas you won’t have to worry about tiny bud development towards the bottom that usually isn’t worth trimming.

-Little pruning required:  The plants stay so small and the veg time is so short that there is little or no pruning required.

-Super easy growing method:  You don’t need to have any special training or pruning skills for the SOG method to be effective.  You just need to understand the concept--you are making a SEA OF GREEN!  

Cons of SOG

-Best with clones:  You will go through way too many seeds with SOG.  Clones are the only way to guarantee a uniform output and consistent finishing times.

-A lot of harvesting:  This can be a pro or a con, but for me it’s a con.  I want to bang out trimming in a couple days a couple times of the year.  This method means a lot more trimming more often during the year.

-More pots (and soil) needed:  Because you are cramming a bunch of pots into your space you will go through a lot more soil and more pots every grow.  Pots are reusable but soil isn’t and hauling that around can be a pain.

-Lots of watering:  Because you are filling a ton of small pots you will have to water a lot at once.

-Costs more overall:  With all the seeds, pots and soil (if applicable) you will be spending more money than other methods.

What is Screen of Green?

Screen of Green, usually abbreviated “SCROG,” is an advanced method of training and pruning cannabis growth using special net trellises.  Branches are gradually stretched horizontally so each bud site will receive the same amount of light (and grow to about the same size).  The branches are pruned and trimmed below the screen so no energy and nutrients are focused on tiny buds and side branching.  You will achieve the same canopy as other methods with fewer plants.

How to set up the Screen of Green Method

  1. Germinate seeds or take cuttings to create clones.
  2. Space the plants out at about 1 or 2 plants per square foot, but only one row.  Make sure you have full access to all the plants.
  3. Grow them using 18 to 24 hours of light.
  4. Once the plants get 4 nodes high, top them by clipping the grow site (which splits the main cola into two sites).
  5. Add the screen to your grow space, placing it 6-10 inches above the pot.  Make sure you can easily access the pots at all times.
  6. Continue vegging and as the plant starts to grow and poke through the screen tuck it back under.  Your goal is to get the branches to grow towards the edge of the tent one square at a time.  
  7. When the screen is at least 70% full switch to flowering, 12 hours light and 12 dark.  The screen will fill entirely by the end of flower.
  8. 10 days into flowering, remove any leaves and flowering sites that didn’t reach the screen.  Keep the underside of the canopy clean going forward (especially great for airflow and preventing mould).
  9. Finish flowering and harvest.

Pros of SCROG

-Great for space limitations:  SCROGs can be modified for any size garden.

-Bigger yields overall: SCROGging maximizes the canopy so there are is no unused space in your tent or grow space.

-Bigger buds overall:  SCROGs grow plants horizontally and no energy is focused on lower buds that get little or no light.  All energy is distributed evenly among plants in the light.

-Fewer pots and less watering overall:  Fewer pots mean less soil (and more importantly less hauling around and disposing of soil) and less watering.  Once the screen is in place you need to be able to access every plant from under it.  For example, I used to use 9 of the 10 gallon pots per square meter.  In a SCROG I use 2 or 3.

-Fewer seeds and clones needed:  Growing horizontally in a SCROG allows you to get the same canopy size with less starting material.  See example above--I use a third of the amount of starting material that I did before (and working towards much less).

-Great for all strains:  You can SCROG with all strains but sativa varieties especially should be scrogged because they grow extra tall quickly.  

Cons of SCROG

-Longer grow time than SOG:  In a SCROG you are going to keep vegging for weeks until the screen is almost full.

-Lots of pruning and training required:  SCROG is more advanced and the whole point is to tuck and prune until you have a huge horizontal plant.  

-You must use feminized seeds or clones:  Because the screen is already in place you won’t be able to sex plants and remove any males as they present themselves.

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