On Saturday afternoon, in front of nearly 200 guests, Roloff, 25, tied the knot with fiancée of one year, Tori Patton, 24.
The pair said 'I do' outside on the Roloff family farm, the same place his brother and best man Jeremy had his wedding last September.
"It's a big day," Roloff told PEOPLE ahead of his nature-themed, traditional ceremony. "We're marrying, coming together, committing ourselves to one another for a lifetime in front of all of our family and friends. We're just super excited!"
And it was a happy day for all, including Zach's parents Amy and Matthew Roloff. Though the couple is currently going through a divorce, they put their differences aside and came together for their son.
"My parents played a huge role in setting up the farm, making it all nice," says Roloff. Adds Patton, "Matt planted a bunch of wheat fields behind the gazebo. There's like these huge rolling hills of wheat, which are really beautiful."
And his mom had her hands full, too. Ahead of the wedding she single-handedly whipped up a rehearsal dinner meal for 45 people.
"My mom's going to have a tough time with all four of her kids marrying, if they all do," Roloff said. "She bawled all the way through her and Jeremy's mother-son dance and she and I are really close. She'll bawl through ours, too."
The wedding will air on this season the family's show. Though the shy pair had a few jitters going into the large ceremony – "neither of us are spotlight kind of people" – now they're just focused on each other. Said Roloff, "We're looking forward to setting our lives in motion."
Little People, Big World airs Tuesdays (9 p.m. ET) on TLC. The wedding will air as a 2 hour special on TLC on Tuesday, August 25, at 8 p.m. ET.