Originally Posted by
ascpeteADelmanto,
From an earlier topic on potting
mix recipes,
http://figs4funforum.websitetoolbox.com/post?id=6704202 , I posted the following...
Fertilome UPM: 85% - 15% (peat - perlite).
Pro-
Mix BX: 85% - 15% (peat - perlite).
Pro-
Mix HP: 75% - 25% (peat - perlite).
Fafard52: 60% - 30% - 10% (pinebark - peat - perlite)
5-1-1: 71.4% - 14.3% - 14.3% (pine bark - peat - perlite).
5-1-1-1: 62.5% - 12.5% - 12.5% - -12.5% (pine bark - peat - perlite - Oil Absorbent)
And
Quote:
Originally posted by leon_edmond
For a number of years I used the old Ray Givan potting mix recipe consisting of:
2 parts fine pine bark
1 part perlite
1 part composted manure
Depending on conditions, adding more pine bark or composted manure adjusts for either a more porous vs. water retentive mix.
To this I would dust with dolomitic lime and osmocote.
I got tired of mixing my own potting soil and now I purchase a ready mix nursery blend from a local supplier that is cheaper and works just as well.
IMO, if you plan on using composted manure it should be equivalent to the "Peat" (fine / high porosity / high water retention) portion and the "Peat" portion should never exceed 50% of the total mix for a standard top watered container. For a bottom watered (SIP) over 60% "Peat" portion is necessary for proper wicking.