good question Lily, if it is a big plant the leaf structure won't support the plant and therefore i would trim the plant down excessively, replant the jiffy into a bigger pot with a light weight perlite/soil mix. if it is a little plant, less then 4" and not too many leaves, i would just stick it back into the dirt and let it grow.
you could also use it in a DWC unit, shaman was aways using jiffies for his plants and it worked more then well for him. so shouldn't be a problem either
