Casual dressy attire preferred. Trousers and a collared shirt/blouse, sundresses, jumpsuits, etc. No one will be mad if you want to be more dressy but it is outdoors in August.
You can find our world market list here: https://www.myregistry.com/wedding-registry/moira-guthrie-and-thomas-rogers-rio-rancho-nm/2923023/giftlist Plants are also awesome!