Sweetheart has a large frame with excellent plant height and a smooth tapered midrib. This romaine has a medium dark exterior plant color. However, during the medium early heart development it has a very smooth and tapered interior with the most intensive yellow interior color of all the newly developed CVS romaine lines. Because of Sweetheart’s slower plant maturity and plant height it can be used for Heart, Fresh, or Processor markets. Other characteristics that will help growers deliver a stronger product to consumers are that it’s corky root resistant, medium strong bolting tolerant, medium early heart maturity (2 to 3 days earlier than Green Forest), it is taller than Green Forest by 2” inches and has strong resistance to low & high temperature abnormalities.