- You will get 500 Seeds of Giant Noble Spinach Seeds Non – GMO Vegetable Seeds. - Genus: Spinacia. - 500 Giant Noble Spinach Seeds Non - GMO Long Standing Spinach Variety. - Large leaves and exceptional flavor make Noble Giant Heirloom Spinach a great choice for your garden! Whether you prefer to can, freeze, or just enjoy it fresh, this fast growing, abundant producer is for you!. - Name: Nobel Giant Spinach. - Botanical Name: Spinacia oleracea "Noble Giant". - Type: Heirloom. - Size at Maturity: 25". - Days to Maturity: 40-45 Days.