2:00 – ceremony
2:30 – Prosecco toast and group photo
3:00 – (photos with B&G and family) reception including wine tasting, lawn games, drinks, and canapés
6:00 – Dinner and toasts
7:00 - dessert
7:30 - guests are invited to join the bride and groom for drinks, or coffee and tea, in the greenhouse
9:00 – Farewells
Re: Afternoon Wedding Timeline - Lawn Games instead of dancing
Having said that, I think a 3 hour gap before dinner is entirely too long of a gap. As a guest, I would just bail, especially if you were having lawn games. I really don't think that fits in at a wedding. People will be dressed up nicely and you want them out in the yard playing games? I would lessen the gap and cut the games.
and why do you need 3.5 hours for photos? that's WAY too long.
Meal first. Then you can break out the games and the dancing, and those who don't want to do either will split, and those who want to stay will stay.
3 1/2 hours is almost as long as most standard receptions are from start to finish. Making me wait that long just to have dinner is just...mean.