Her daughter-in-law, Colleen Daley, found the ring while harvesting carrots for supper with her dog Billy at the farm near Armena, Alberta, where Grams used to live.
We're not sure which part is crazier - the ring turning up after 13 years, or the fact that it grew perfectly around a carrot.
At the time the ring was lost, Grams only told her son Brian, because she had been helping him at the time.
A few weeks later, the clever woman chose to buy a look-a-like so her husband wouldn't notice her missing band.
"I didn't tell my husband because I thought for sure he'd give me heck or something", she said.
Lost for more than a dozen years - it's sprung back up, held securely around a carrot.
She said she and the family searched on and off for at least a decade, crawling around the farm on their hands and knees, but there was no sign of the ring.
Now, she said she believed if her husband was around, he might have gotten a kick out of the whole story.
The carrot was cinched in the middle, looking like a finger with its circulation cut off, and Brian's wife had been about to toss the mangled vegetable when she saw the reason for its deformity: it had grown inside Mary's missing ring.
Thirteen years later, her daughter-in-law just found it growing around a carrot pulled from the ground, as first reported by the CBC.
"I've never seen anything like that", she told CBC.
Sadly, Grams' husband passed away five years ago, only a month after their 60th wedding anniversary.