guerrilla growing is not always easy and sometimes you have to work hard and pack in a shitload of soil if you want success. It really depends on the existing soil. Is it clay, soft, dense, loamy, well drained? If im transferring seedlings or clones from inside to outdoors to plant in the ground I start them in paper towel rolls packed with soil. This way they develop a long tap root. It helps em survive drought later on.