Jim,

I'll defer to Al or others who are expert at their potting mix formulas for containers. As a point of reference, I found MiracleGrow Potting Mix (without Moisture Control) to be the better (commercial) product than the more expensive MiracleGrow with MC for my application. It is about 20% less expensive per cubic foot as well.

The MiracleGrow produced more fruit in my (unscientific) trials vs. the Lowes brand StaGreen last season.

Raybo

I used Pro-Mix for containers last year in my Tomato SWCs as HD was clearancing it out early in the spring when I was building them. It is basically a peat/pearlite mix. I added Epsom salts and Tomato Tone to the mix. This year I may differ slighly and try a 1-1-1 mix of peat/compost/perlite (or vermiculite).

I was picking Romas daily all summer with that combo. I also occasionally added a liquid fert concentrate designed for hydroponics to the water resevoir when I remembered.

It was very dilute though...probably on the order of 1 tsp to a gallon of water. I also foliar sprayed with the same concentration, but I do not think that it helped any versus in the resevoir.

This year will be a year of experimentation with the SWCs for me.

Thanks for the replies , Im going to do a little experimenting to this year with different soil mixes , im going to try al's mixes also for tomatoes .
jim