Fordhook Giant Organic Swiss Chard Seeds 4195 Heirloom Vegetable. Huge, glossy green, white veined, crumpled leaves are the hallmark of this old favourite. Always produces a bumper crop of tasty leaves â€“ even during periods of high temperatures. When harvesting leaves, carefully cut them from the crown. This will allow new leaves to sprout from the old crown and increase the harvest time of individual plants. A trusted variety for over 80 years!