Swiss Chard does not transplant well and does best if the seeds are planted directly in the soil. Swiss Chard will better tolerate heat if plants are well thinned and air can circulate around them. Plant your seeds outdoors. Spring planting should occur as soon as soil can be worked. Maintain constant moisture level throughout the year for best results. Swiss Chard is resistant to frost, and can be harvested well after first frost. Many successive harvest can be made from one planting. Cut back plants in late summer to rejuvenate them for fall production. Plants grow 6 - 20" tall.