What is the best potting mix to start off a new box for growing veges and herbs?. I used to have a combination that you recommended but cannot find it.
I find that Daltons potting mix is pretty good. Here’s an article I wrote for the website about potting mix
When you want to refresh it,just add more fertiliser to your old potting mix after you have turned it over to aerate it.Add more organic fertiliser eg 3 handfuls of Yates Dynamic lifter, 1 handful each blood and bone, lime, dolomite.