Indeterminate, or vining, plants grow taller and produce fruit throughout the season. They can blossom and set and ripen fruit all at the same time. Most heirloom varieties are indeterminate, sources said.
Most cherry tomatoes and grape tomatoes are indeterminate.
“Companies over the last few years have been trying to produce determinate-type compact plants to produce grapes,” Kazokas said.
Jorgenson said most determinate tomatoes go to the open field, while indeterminate plants go to protected culture, like greenhouses.
“With determinate, it’s a much quicker harvesting time for growers, basically a once a season shot,” Jorgenson said. “So you’ve got to balance all these different kinds of tomatoes.”