Vulcan Rhubarb Chard. Bright red stalks make this established variety a stunning addition to flower and vegetable gardens. Harvest regularly from July to November for delicious additions to salads and other meals. Easy to grow, plant between April and July. A pack is included. A highly ornamental and decorative established variety with bright red stalks, this Pack of Vulcan Rhubarb Chard is perfect for the flower and vegetable garden. Perfect for a variety of meals, pick regularly for a delicious addition to salads. Easy to grow, simply plant between April and July for harvest between July and November.