2019 California Pumpkin Patches And More.org Find a pumpkin patch, corn maze, safe trick-or-treating, hayrides and other Fall and Halloween fun near you! Toggle navigation Pumpkins. Bishop's Pumpkin Farm in Wheatland, CA Bishop's Pumpkin Farm is a great place for smaller children and families. Located in Wheatland, CA it is a bit of a drive, but it is worth it. One of the best features is the tractor ride out to the pumpkin patch and they let you know where to locate small or huge pumpkins!