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Hey guys,

Listening to the last podcast you asked the DGC about information on supersoil. My first few grows were all organic and based on subcools supersoil recipe. I also read the Rev’s book on TLO, but haven’t personally used the techniques he uses.

Subcool’s supersoil

First, when referencing Subcool’s supersoil recipe it is important to point out that he has changed the recipe over time, and he will probably continue changing it but usually updates it on his youtube channel videos. That said this is based on his most recent recipe. Also, this recipe is for a very large batch that should fill a few 31 gallon trash cans, you can split these numbers to make a batch more specific to your size.

Subcool Supersoil Recipe

  • 9 large bags high quality organic potting soil with coco fiber and myco (I used roots organic mixed with light warrior)
  • 25 to 50lb of organic worm castings
  • 2.5lb Fish bone meal
  • 2.5lb bone meal
  • 5lb blood meal
  • 5lb bat guano (bloom)
  • 3 cups oyster shell
  • 3 cups kelp meal
  • 3 cups alfalfa meal
  • 3/4 cup epsom salt
  • 1 cup dolomite lime
  • 2 cups azomite
  • 2Tbsp powdered humic acid
  • 2Tbsp myco
  • optional: 1-2 Cups Crab meal, or 2 cups charcoal

Then you ‘cook’ it up for at least a few weeks.

When you use this soil you only use it on the bottom 1/2 to 3/4 of your container, the top being a normal soil mix this way you dont burn out your young plants with the hot soil mix, and it has time to establish its roots before it reaches the enriched soil area. This is the same idea with the rev and his layering and nutrient spikes, though I’m not so sure of the science behind the spikes. If nothing else his book has a great listing of organic additives, and a decent basis for organic gardening. Any serious grower would do good for themselves to read both the “teaming with microbes” and “teaming with nutrients” books to further understand whats going on with organic soil and the soil food web.

I ran this for my first run exactly to spec, watering with RO water. I found I needed to add a little bit of CaMg since I was using RO, but with normal water that probably wouldn’t be an issue. I think that it could use a bit more aeration in the soil composition. The plants came out pretty good. I got a lot of fall colors during flower and amazing aromas and flavors.

Next round I ran the same soil but started supplementing with aerated compost teas which I brewed up in a DIY vortex brewer ala www.microbeorganics.comĀ  (do yourself a favor and read that site). The teas definitely stepped the growth up a bit from just water, so I’d highly recommend using them when going organic.

I then discovered recharge and it was a game changer for me. I haven’t fired up the vortex brewer since I found your guys podcast and started using recharge. The vortex brewer was stinky(fish), the air pump was loud, and the whole thing had to be monitored, so it was great to be able to use a soluble microbe mix as a replacement. I feel I got even better results with the recharge and it was simpler.

I then ran a round of GH General Organics line per spec, adding recharge, grow more armor kote, and biocozyme (I’m seeing a trend here DGC). It came out ok but certainly not as good as the supersoil with recharge. I will say that it was a very simple and easy way to get into organics, even though I am kind of going backwards since I started out mixing my own soil and regressing into the bottles. I’d certainly recommend that line to any beginner wanting to stay “organic”.


I’m currently testing the Capn’s methods and have so far been getting amazing growth rates. I have a couple autos finishing up in his simple hydro system (first time doing hydro) with his recommended nutrient schedule. They area looking good, but they are autos. I’ve got two more vegging up and they are massive, topped plenty and just straight bushes. Hoping those autos will finish up so I can fill the flower tent up and see what I can pull with the Capn’s method. The root growth is absolutely amazing using his methods as seen below.

transplanting from 1gal to 2gal containers

roots1_1 roots1_2

transplanting from 2 gal to 3gal or 5 gal containers, 2 weeks later

roots2_2 roots2_1

As a perpetual student of this plant I’m interested in testing all of the gardening methods that I can. I’m considering aquaponics, and I have an interest in the no-till methods that some people are having success with even if those methods don’t lend themselves to fast growing annuals on paper from what I have read.

Keep the good content coming.