Non-GMO Treated Howden pumpkins are the most typical pumpkin for a jack-o-lantern. This pumpkin is ready in 115 days with symmetrical and round fruit. Its thick, hard, orange shell makes it perfect for carving. Howden pumpkins are known for their 15 to 25 pound uniform shape. This pumpkin was bred to be carved but can still be eaten. Many people love to roast the seeds of this pumpkin.