Mammoth Squash grows up to 38 inches (96 ½ cm) across, and up to 30 pounds (13 ½ kg) in weight.
It has yellow flesh.
Harvest when the squash are 8 inches (20 cm) wide or less. Basically, if you grow it beyond that, count it as an ornamental. The flesh gets watery past that.
100 days from seed.
Storage Hints
Stores well.