The pair, who are tying the knot in a live TV special on ABC on Jan. 26 next year, were spotted looking at flower arrangements in L.A. on Thursday.
Lowe, who celebrated turning 30 with a party in Las Vegas on Friday night, and his fiancée were trailed by a camera crew while looking at table settings, and they also checked out a bridal bouquet in shades of pale pink.
But the wedding planning didn’t end there. A day after scoping out blooms, Lowe Tweeted that he and Giudici, 27, to whom he proposed in Thailand on The Bachelor finale earlier this year, were off to Bloomingdale's to register.
For Lowe, who's sticking to his traditional values and abstaining from sex with Giudici until they're married, their wedding day can't come soon enough.
"I'm a guy," he told PEOPLE in March. "If it were up to me, I'd go to the courthouse tomorrow and it would be a done deal!"