What to wear to afternoon tea & high tea & the 1 thing not to wear! Floral Dresses Women's Dresses with Floral Prints Petal & Pup USA I get asked what the appropriate dress code is for afternoon tea and I always recommend smart casual at a minimum. Smart casual is polished and put together but comfortable. Wear neat, clean clothing London Times T6691M Halter Tea Length Casual Dress afternoon tea in London ~ Roses and Rain Boots Dress For Afternoon Tea 17 Dress Styles That Would Be Claire Justine