Once every three years, there is an
international competition in horticultural sculpture, called
"mosaiculture," in a major city in the world. In 2013 it was
Montreal. This is not topiary but rather creating sculptures out
of living plants. The greatest horticulturalists in the world,
from 20 different countries, submitted plans a year in advance.
Steel armatures were then created to support the works (some 40 feet
high); they were then wrapped in steel mesh and filled with dirt and
moss and watering hoses. Then they ordered 3 million plants of
different shades of green and brown and tan, and these were grown in
greenhouses all over Quebec. In late May, these horticulturalists
came to Montreal and planted all of their plants in the forms at the
Montreal Botanic Gardens, and they have been standing for three months
now. There were 50 major sculptures along a path two miles long.

If you would like to visit a few and walk along the path, click on
http://myvirtualgarden2.blogspot.com...xhibition.html