I live in Apache, OK. I had a "puking pumpkin" for Halloween last year, and left the seeds. This year, they sprouted like crazy, and I just let them grow. So far I have harvested six pumpkins.

The odd thing is I have two more vines that are growing green and yellow striped bumpy gourds. I have no recollection of even having any of those around! Since it has been cooler and very wet this year, they are taking off. Less grass for me to mow, anyway.