Howden Biggie Pumpkin Seeds. Treated, Non-GMO, Heirloom. 115 days. Extra large version of the popular Howden, this pumpkin has a true pumpkin shape and color. Averages about 40 pounds with a strong stem. Consistently good, even shape over its range of sizes, thus providing more marketable fruit that can command premium prices. Approx. 190 seeds/oz.