The City Trees program sells trees for $25 from March 8 to April 16, or until trees run out.
One estimate says the oak was up to 200 years old.
The fatal accident happened Monday afternoon.
The man's legs were pinned under a tree for more than 100 hours.
Nature is once again trolling Minnesotans.
MnDOT had to respond in the middle of the night to open the highway.
The disease causes sudden oak death, and is feared to be making its way to the Midwest.
The city made the change to its tree program due to "overwhelming popularity."
Buyers have been advised to burn wreaths and boughs at risk from the pests.
This monster jack pine was found in Voyageurs National Park.
Stunning displays of color change are moving from north to south.
"I’ve never seen such an egregious effort towards trees.”