The nursery sells more than ten different varieties of clematis.

The largest clematis nursery in North America sells nothing but clematis plants.

Some of the 【GL:i】jackmanii【/GL:i】 sold by the nursery are sold to gardeners outside North America.

Most North American gardeners grow clematis in their gardens.

For all nurseries in North America that specialize in clematis, at least ten percent of the clematis plants they sell are 【GL:i】jackmanii【/GL:i】.