Boxwood grows without pruning for a more informal look. Boxwood plants brought over from Amsterdam found a new home on Long Island, New York, in 1653, according to the American Boxwood Society. Over 350 years later, we still use them for hedges, foundation plantings, specimen accents in containers and even in topiary and bonsai.
The Twelfth Century Renaissance was an internationalist movement. One characteristic of this was the wandering scholars who traveled from country to country. They developed their own genre of poetry-Carmina Burana-Latin songs celebrating academic and also more earthly pleasures.hr tien de Troyes (ob. c. 1185), the author of Arthurian Romances, argued that contemporary French culture was as fine as that of ancient Greece and Rome.  Il fonce sur lui, croyant le prendre au d pourvu, Mais Lancelot sut se prot ger; Avec son p e tranchante.
To follow Chris Resro's answer, part of the question should be why did it stick in Europe, and go away in other places? Renaissance is generally considered the 14th to 17th centuries, 1301 to 1700. More specifically the late 14th, around 1380 or so to about the middle 1600s. Preamble - Changing weather, and the Black Death. The Great Famine of 1315-1317 and later the Black Death from 1342 to the about 1400 (It came back a few times). The weather in Europe did not get quiet as bad again.