Bellamont Topiary's website combines information about how to grow and care for box topiary with an extensive catalogue of plants for sale. While not yet responsive this site, built in 2005, still holds its own as a beautiful shop for this lovely business.
"Bellamont Topiary is a family business in Dorset's beautiful bride valley. The nursery is situated south west of Dorchester on a south-facing slope, and has the largest and most varied collection of British field grown box topiary shapes and hedging in the U.K."
from the Bellamont Topiary website