But no, they grow on vines that run along the ground. The bogs have "islands" where the berries grow, and in between the islands are irrigation channels. All through the summer they use sprinklers on the plants, drawing water from the channels. When the cranberries are ready for harvest, the growers flood the bogs and the cranberries float on the surface for gathering. Then in the winter, they leave the bogs flooded so that they freeze and protect the plants below. If you don't live near an ice skating rink, you can skate on the bogs, although the surface isn't very smooth and a lot of leaves and bits of long grass do poke through the ice. Still, if you have a hankering to go skating on a nice afternoon, a bog does work in a pinch.
I shot these pictures 20 years ago, in October, 1987, of the harvest at a bog along Rte. 6A, in East Sandwich. This is one of the bogs I also used to skate on because it was pretty large and the quality of the ice was better than the one across the street from my house.
It's a truly stunning picture, to see all these bobbing, ripe, shining bright red berries.
The harvesters can wear hip-waders, as they are standing on the bogs, which are only flooded about 8"-9" deep, although the irrigation channels would obviously be deeper. They stand in a line and drag a boom across the water to gather the cranberries close to shore.
Then the berries are sucked out of the water and shot into the back of this truck. On the far upper right corner, you can see the chute angled. When you drive by on Rte. 6A, it's a really cool sight to see all these berries flying out of the chute into the truck.
Here's a pretty fall scene.
I believe this is "Smiling Pool", in East Sandwich. It's located behind the Green Briar Nature Center. Children's author Thornton W. Burgess set his "Peter Rabbit" stories in Sandwich and the creatures lived around Smiling Pool. Other Burgess characters included Jemima Puddle Duck and Jimmy Skunk. The Green Briar Nature Center also sells a lot of delicious home made jams and jellies. There is also a Thornton W. Burgess Museum in downtown Sandwich, on Shawme Pond.