Hey @Eastcoast, welcome back to Overgrow!!
Here’s a handy recipe book:
soil recipes.pdf (193.4 KB)
Coots is a straight forward 1:1:1 mix of EWC, peat & aeration of your choice… plus amendments. I’d suggest some rock dust as well.
My cover crop favorite is micro clover (it just takes longer to get to full size)
I started with “True Living Organics” by The Rev as my bible. lots of good stuff there.
There’s some folks here working that Korean organic system. I haven’t much more than skimmed that, but it looks interesting.
First order of business, you want a worm farm… Fresh EWC is magic.
If you are in Canada, check out the Gaia Green product line.
Back to your question, use the Lush soil as the peat contribution, mix in an equal amount of EWC or worm compost and then add the aeration material (pumice, perlite, rice hulls etc). Then add the amendments mix and wait a week or two. With those ingredients waiting isn’t mandatory.
This is your base soil mix, the stuff you can start seedlings and clones in.
I add some bone and blood meal (in different ratios) to the base for veg and flower mixes.
I suggest you look through the amendment lists of various recipes to get a feel. You might need to do substitutions because of price or availability, that’s OK, there’s no ‘right answer’ .
Cheers
G