Garth, 41, met Shimbo a few months ago through mutual friends and the couple has been seeing each other since then, reports contactmusic.com.
"They met through a friend. They've been seeing each other for a couple of months now. They are great together. Super sweet," usmagazine.com quoted a source as saying.
The couple has posted numerous pictures of each other on social media and attended Comedy Central's show "Roast of James Franco" together in Culver City, California, Aug 25.
Garth posted a picture with her new beau on Instagram Thursday. The caption of the picture read, "I mean...@shimbo luckylady."
The actress was previously married to actor Peter Facinelli, but the duo split in March 2013 breaking their 11-year marriage.
Since splitting from Facinelli, Garth has dated a number of other men, including photographer Noah Abrams and Indie-musician Jeremy Salken.
--IANS (Posted on 08-09-2013)