Matt Rize
Hashmaster
Yeah, I agree, what's up with that? You would think Roots knows about the CalMag issues.You will probably have pH and cal/mag issues without the lime, especially pH.
2TBL/gallon of mix, or 1cup/CuFt of mix.
Cost is ~$5/40#bag at Lowes. How much cheaper can you get?
It needs to be added to any peat based mix, Roots or ProMix, just about any of them.
Wet