The Lanaudière farmer says things have been tough, but he's in it for the long haul.
Tobacco producing was, at one point, a relatively profitable and popular business in Quebec.
In the 90s, there were more than 150 tobacco producers, but the number dwindled slowly. By 2003, there were only a couple left.
Some farmers sold or leased their land, others started farming fruits and vegetables.
"Consumption has fallen," said Gaétan Beaulieu, a former tobacco farmer.
As well, he said, one by one, tobacco manufacturers started looking overseas to buy their leaves.
"We were not competitive at all," said Beaulieu.
Janson admits sometimes it's difficult to keep the farm going.
In 2009, he was forced to store his harvest for two years before managing to sell it, but he persevered.
He wants his son to take over the family farm so the tradition will continue for a fourth generation.