|This is Clematis ternifolia 'sweet autumn' in full bloom in only its
second season. This variety is sometimes called Clematis paniculata
(and in fact it was sold under that name), but I am told that is incorrect.
It is an extraordinarily vigorous grower. I pruned this plant back
to 1 foot above the deck in February (it emerges through a hole in the
deck behind the white planter), and it grew nearly 30 feet before flowering
in early September. It is apparent here that it flowers only on the
most recent growth. Next year I plan to keep it on the pergola so
the flowers will be down lower. It is growing on top of Rosa
'climbing Cecile Brunner' in the center. Rosa
'New Dawn' is to the left, and a Clematis montana
is to the right.
It is noticeably fragrant. Similar varieties flowering at the same time grow semi-wild in this area.