m0useanswered grow question 3 years ago Amend the soil with coir/peat/compost/manure/tipple 3way mix, no more then 1/3rd of its total volume don't replace it. Line the bottom with a layer of mulch and dead leaves, dig down aorund 3 feet.
PS. Quebec Cannabis Seeds are a shady company I would not buy from them again, they steal images from other sites and use them as their own.
They have 3 sistering companies with similar names and website layouts. MCS and TCS - Montreal/Toronto
Good Luck!