It holds just enough tea to have a cup for myself and a cup to share with a friend. However, it is a little short for some varieties of flowering teas. These blooms would definitely be better off in a taller pot. It seems that the pitcher style pots are more practical for this application. While a pot that is not made of glass would do the same job, I love how this one enables me to view the leaves as they unfold.
You can find out more about this teapot here.