The dress code is cocktail attire. Tea-length or longer dresses are appropriate, as are suits and ties.
The ceremony will be outdoors (weather permitting), so please dress accordingly. Make sure footwear is sensible for walking and standing on grass!
If you'd like to, you may join us in garden-party inspired patterns and palettes (think florals and pastels). This is by no means a requirement, just a suggestion if you're looking for some outfit inspiration!