"I was a sweaty mess from doing the gardening and almost didn't check my tickets because I just wanted to get in and out as fast as I could," the woman said.
"But as I was leaving the store, I saw someone at the Lotto counter and thought 'Ah, I may as well just check them while I'm here' – I figured I'd carried them around long enough by that point.
"When the man at the counter put my second ticket through the machine I heard the winning noise, and honestly, I just thought I'd won a bonus ticket.
"That's when he said 'you're a winner!' And handed me a little yellow slip of paper that had the prize amount on it – when I looked up at him I could see he was absolutely beaming. I read the slip of paper and thought it said $250 at first – then I did a double take and realised it was a tad more than that."
The woman said she was left in complete shock.
"I always see the Lotto ads on TV and think how amazing it would be to win' – it's something you always dream about, but for it to actually happen…well, we are absolutely blown away.
"My husband and I have spent the past few days asking each other if the news has sunk in yet, the answer is still 'no' every time – I think it might take a while."