This pumpkin variety holds the world record for the largest pumpkin ever grown. The Atlantic giant pumpkin is known to reach sizes of 500 to 1000 pounds. Each vine will produce one very large pumpkin, or 4 to 6 medium to large size pumpkins easily weighing over 40 pounds each. The seeds are plump and delicious when roasted, and although the flesh is rather stringy it is still very delicious.