Organic Super Soil Recipe for Indoors
*SUBSCRIBE* already you beautiful people. I am truly sorry to those of you who think I talk too fast. However arguably our time here is the most valuable asset we have.
*BASE POTTING MIX*
30% Sphagnum Peat Moss
10% Redwood Bark
10% Coco coir
20% Perlite
5% Lava Rock
15% Compost
5% Worm Castings
5% Alaskan Humus
Nutrients should be added relative to the amount of base potting mix you have.
*BAT GUANO* (e.g. VermiBat by Vermicrop Organics)
4 lb / cubic yard of base potting mix
67 g / cubic foot
2.37 g / liter
*SEABIRD GUANO*
4 lbs / cubic yard of base potting mix
67 g / cubic foot
2.37 g / liter
*BONE MEAL*
4 lbs / cubic yard of base potting mix
67 g / cubic foot
2.37 g / liter
*POTASSIUM SULFATE*
2 lbs / cubic yard of base potting mix
33.5g / cubic foot
1.185g / liter
*FINE DOLOMITE LIME*
2 lbs / cubic yard of base potting mix
33.5g / cubic foot
1.185g / liter
*FEATHER MEAL*
1 lbs / cubic yard of base potting mix
16.25g / cubic foot
0.59 g / liter
*AZOMITE®*
1 lbs / cubic yard of base potting mix
16.25g / cubic foot
0.59 g / liter
*DRY POWDERED SEA KELP* (e.g. VermiKelp by Vermicrop Organics)
1 lbs / cubic yard of base potting mix
16.25g / cubic foot
0.59 g / liter
*ALFALFA MEAL*
1 lbs / cubic yard of base mix
16.25g / cubic foot
0.59 g / liter
*OTHER OPTIONS FOR ADDING ORGANIC NUTRITION*
*Blood meal* (e.g. VermiBlood by Vermicrop Organics) — dried blood, not for the squeamish. Same NPK as feather 12-0-0. Very expensive. Contains iron. Very high protein content. Fine, water soluble.
*Calcium Phosphate* — not my favorite. Cheap – gives you phosphorus and calcium. Popular with organic growers. Issues with contaminants. (Uranium, Plutonium, cadmium, arsenic) Not recommended for growing medicinal plants.
*Crustacean Meal* – combination bi-product – ground up lobster, crab, shrimp shells. High N content along with potassium and calcium. Chitin in the crustacean meal provides a defensive response in plants against insect predation, so it can act as a beneficial pest preventative.
*Fishbone Meal*— store in dry conditions. Mold susceptible. High N. Very high phosphorus.
*Glacial Rock Dust* — trace elements—soft rock phosphate. High Phosphorus mined rock. 0-3-0 ultra slow release. Not recommended for short cycle plants.
*Green Sand* — Sand or sandstone with a green color. High silica levels. Another mined product. Similar to glacial rock dust.
*Insect Frass* (e.g. Charge by Ecothrive in Europe or “Insect Frass” in North America) broad spectrum fertility and a hit of beneficials. Also contains chitin.
*Mycorrhizae* (e.g. Subculture M by General Hydroponics) – More economical to use in transplant (direct contact with roots) rather than blending with potting mix. Relationships tend to be long term so there’s an argument that this is better suited for cultivating larger, older plants.
Don’t forget—if you follow this recipe make sure you wet your mix with some water and give it some time to compost and pH stabilize over a month or so.
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