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Note: This mix results in a potting soil that is heavier than modern peat mixes, but still has good drainage. Compost has been shown to promote a healthy soil mix that can reduce root diseases. Perlite can be used instead of sand. Organic fertilizer can be added to this base.
Prick-out mix for growing seedlings to transplant size
6 parts compost
3 parts soil
1-2 parts sand
1-2 parts aged manure
1 part peat moss, pre-wet and sifted
1-2 parts leaf mold, if available
1 6" pot bone meal
The following recipe is credited to Eliot Coleman.
Organic potting mix 1 part sphagnum peat or coir
1 part peat humus (short fiber)
1 part compost
1 part sharp sand (builder's)
to every 80 qts. of this add:
1 cup greensand
1 cup colloidal phosphate
1 1/2 to 2 cups crabmeal, or bloodmeal
1/2 cup lime
