From ArborWiki

Pumpkins, where to find them, where to pick them, and the like.

Here are some places you can go to get pumpkins.

• Erwin Orchards in South Lyon
• Jenny's Dexter Farm Market in Dexter

choose your pumpkin from a pile of already-picked pumpkins on the ground

• Lutz Orchard in Saline
• Makielski Berry Farm in Ypsilanti - no pumpkins in 2008, back in 2009
• Plymouth Orchards in Plymouth - but take care, as this live journaler reported, not to expect pumpkins on the vine:

Just a heads up. I went out to Plymouth Orchard the other day, a place that advertises "U Pick" pumpkins. Apparently, U Pick seems to mean "U Choose From the Rows of Pumpkins" not "U Take the Pumpkin Off the Vine".

• Rodger's Produce in Dexter
• Wiard's Orchards in Ypsilanti
• Wasem Fruit Farm in Milan

go into the pumpkin field and pick your own pumpkin

• Wing Farms in Ann Arbor, corner of Zeeb Road and Dexter-Ann Arbor Road

pick a pumpkin from the field

Ann Arbor Farmers Market always has pumpkins for sale in season from multiple vendors.