Spinach, Matador - Viking Matador Viking Spinach Seeds. 45 Days. Non-GMO, Open Pollinated, Heirloom. Spinacia oleracea. An easy to grow heirloom spinach dating back to 1933, and very popular in Italy. Smooth leaves are large and dark green. Perfect for boiling, canning and freezing. A great variety to use in any Italian recipe that calls for spinach. Direct sow in early spring or late summer. Prefers full sun, but grows best in cooler temps. Slow Bolting. Annual. About 2100 Sees per Oz. Why Mountain Valley Seed Company? Find out why over half a million customers have chosen Mountain Valley Seed Company for their seed and gardening needs. 100% of our seeds are Non-GMO, and we have a huge selection of organic seed options to choose from. In addition, we offer an amazing selection of Microgreens Kits, Wheatgrass Kits, Indoor Herb Garden Kits & more. Growing together since 1974, Mountain Valley Seed Co. has been providing high-quality seeds at incredible prices to local and nation-wide growers alike.