I usually love and look forward to content from this source. In this case, however, it should be noted that Sweet Autumn Clematis, aka Viginsbower, or Clematis Terniflora DC, is highly invasive in many parts of North America and should not be planted, bought, sold or promoted in reputable garden journals.
Here is an excerpt from the National Park Service/US Fish and Wildlife Service "Plant Invaders of Mid-Atlantic Natural Areas:"
Origin: Japan and China
Distribution and Habitat
Sweet autumn virginsbower is
documented to occur in much of the
eastern U.S. from Minnesota to Vermont, south to Texas and Florida.
It has been reported to be invasive in Alabama, Delaware, Florida,
Georgia, Illinois, Maryland, New Jersey, North Carolina, South
Carolina, Tennessee and Virginia, although it is probably invasive in
additional states where it occurs. It prefers full sun but can tolerate
partial shade.
Ecological Threat
This species is found invading forest edges, right-of-ways and urban
areas along streams and roads. It grows vigorously over other
vegetation, forming dense blankets that block sunlight to the plants
underneath. In late summer infestations are conspicuous as a result
of its abundant showy white flowers.
Please remove this plant from the content of this very dated article.
I usually love and look forward to content from this source. In this case, however, it should be noted that Sweet Autumn Clematis, aka Viginsbower, or Clematis Terniflora DC, is highly invasive in many parts of North America and should not be planted, bought, sold or promoted in reputable garden journals.
Here is an excerpt from the National Park Service/US Fish and Wildlife Service "Plant Invaders of Mid-Atlantic Natural Areas:"
Origin: Japan and China
Distribution and Habitat
Sweet autumn virginsbower is
documented to occur in much of the
eastern U.S. from Minnesota to Vermont, south to Texas and Florida.
It has been reported to be invasive in Alabama, Delaware, Florida,
Georgia, Illinois, Maryland, New Jersey, North Carolina, South
Carolina, Tennessee and Virginia, although it is probably invasive in
additional states where it occurs. It prefers full sun but can tolerate
partial shade.
Ecological Threat
This species is found invading forest edges, right-of-ways and urban
areas along streams and roads. It grows vigorously over other
vegetation, forming dense blankets that block sunlight to the plants
underneath. In late summer infestations are conspicuous as a result
of its abundant showy white flowers.
Please remove this plant from the content of this very dated article.