No planter unless its huge and cloth imo...Idk how much 107 litres really is but outdoors you should till deeper and around your plot plus amend the soil so that you know the dirt around what you add is ready..otherwise shit you can add as much dirt as you would like to displace but it becomes less and less worth the cost, use what's provided free also!..I would add around 5-10 gallons to each hole to get a nice start! Then id add blood/bone meal in about a 30/70 ratio soil being the 70..once strong into veg and needing food, I add that mixture to bury the stretch in the stalk..creates trees..