The wedding took place in the family's lakeside bach on Lake Rotoiti, which also featured in Tuesday's show.
"It was a very Bay wedding. My dress was by local designer Corina Snow and the bridesmaids were in Moochi."
Hlavac hopes her son will have a similar happy ending on The Bachelor.
"I hope he finds love, and yes have a family. It is important whoever she is gets on with me, otherwise it will be miserable. We are a very close family."
The New Zealand Trade and Enterprise worker was "proud and relieved" to finally watch his debut this week.
"It was not as hard to watch as I thought. Although it may get harder to watch when he starts kissing them. He came across as himself - intelligent with a great sense of humour, like when he laughed at himself when he slipped over, that made me laugh too as that's him all over."
Just like viewers, Hlavac will be checking out the 21 hopefuls who are vying to be "the one" to win Green's heart.
On Tuesday night's show, the second person who Green gave a rose to, indicating his preference, was 33-year-old mother of two Danielle Le Gallais who, in 2005, was sentenced to 18 months' jail for stealing almost $40,000 from her employer, the Herald reported.
Hlavac said she had faith in her son's ability to judge character in the long term.
"It is early days. He didn't get much time with them last night so I wasn't looking too closely at the girls. Next week I will be watching them more. I trust him. He will go for someone who has the same values as him, a good sense of humour, and an interest in healthy living."
She was not too worried about her son being thrust in the limelight.
"When this opportunity arose for Arthur just before Christmas, we discussed it as a family. Obviously there are pros and cons ... but my children are well grounded and it comes from having a 'country' upbringing. They had the freedom to run around, and make discoveries and were not always on computers"
Hlavac's daughter, Arthur's sister, Emily, is also getting a taste of celebrity, currently working as a photographer and stylist for celebrity chef Annabel Langbein.
As well as Emily, Arthur has five other sisters: three are daughters of Hlavac's Tauranga husband David, and two are daughters of Arthur's father and his partner.
Click here to watch the first episode of The Bachelor.
