They probably will grow slow. The reason you harden off is they came from indoor climate control so outdoors you have to get them used to temps, humidity level, new soil temps, sun power, night temps. When you got quickly from new clone to outdoors its a shock to the plant and very stressful which can also invite sex change ie hermies. I like to let the clones roots in a small pot in the soil they will be in. I usually put them in the soil as soon as roots show thru the rockwool or rapid rooter or whatever they started in. then for the next week or so they go out and get a bit used to it. If your guerilla growing let the plants get to like 6 inches then they are established and go out quick with less issue.