60 days. Fordhook Giant Swiss Chard has dark green leaves with succulent light green stalks. The stalks are juicy and tender while the leaves can be used for cooking, salads or as a substitute for grape leaves in international recipes. The cold hardy plants grow to about twenty inches tall. Each seed packet contains approximately 200 untreated swiss chard seeds. This is a great all around open pollinated swiss chard variety, adaptable to any home organic vegetable garden. You will be 100% satisfied with the quality of our Fordhook Swiss Chard Seeds, especially if grown in an organic vegetable garden. Available direct from Incredible Seeds, a Canadian Heirloom and Heritage Seed Company, offering only the best natural, non-GMO, open pollinated and untreated seeds, located in Nova Scotia, Canada. Ford Hook Swiss Chard Seeds Mature in about 60 days and are an open pollinated swiss chard variety.