Home, Yard & Garden Newsletter at the University of Illinois Sweet William Dianthus Seedlings Plant callus tissue culture, biology science for plant regeneration. In vitro growth medium. Various plants cultivated in vitro in dishes and tubes in Stock Photo Alamy Why Plant Carrot Seeds Directly , For the best carrots, sow seeds right where you want them to grow! , Heres why.., Carrots have delicate roots that can be disturbed during transplanting, Whole Food, Plant Based Diet Guide Center for Nutrition Studies