Summer cocktail attire! Alison says: The event will be outside on grass and gravel, so plan your footwear accordingly. Jake says: I don't own a tie, so no one is allowed to wear one.
The main thing is it will be hot. For men, suits aren't necessary; wear khakis and a button up shirt or a variation on that. Maybe a summer jacket. Flip flops and cargo shorts flatter no one. For women, festive dresses or skirts! Or summery pants, maybe a floral pattern? You can wear your pretty flip flops if you like. But still no cargo shorts.