Originally developed at Clemson University and improved in 1980 for an earlier, more productive harvest. These heat-loving plants produce dark green, grooved, straight pods with a full-bodied flavor that okra lovers find utterly delectable. Related to hollyhocks, the plants’ beautiful flowers make them a pretty addition to the flower garden and they attract pollinators.. Mature Size: 36″ x 18″. Full Sun (6+ Hours).