Reynoutria, Variegated Asian Knotweed, Variegated Japanese Knotweed 'Variegata'

Reynoutriajaponica

Species
japonica (juh-PON-ih-kuh)
Synonym
Fallopia japonica
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Good Fall Color
Smooth
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Regional

This plant is said to grow outdoors in the following regions:

Birmingham, Alabama

Huntsville, Alabama

Fort Smith, Arkansas

Garfield, Arkansas

Boulder Creek, California(2 reports)

Calistoga, California

Castro Valley, California

Emeryville, California

Magalia, California

San Jose, California

San Leandro, California

Norwich, Connecticut

Winsted, Connecticut

Buford, Georgia

Marietta, Georgia

Montpelier, Idaho

Mounds, Illinois

Peoria, Illinois

Jeffersonville, Indiana

Warren, Indiana

Shawnee Mission, Kansas

Wichita, Kansas

Glenn Dale, Maryland

Dracut, Massachusetts

Wayland, Massachusetts

East Tawas, Michigan

Freeport, Michigan

Howell, Michigan

South Lyon, Michigan

Minneapolis, Minnesota

Starbuck, Minnesota

Columbia, Missouri

Lincoln, Nebraska

Buffalo, New York

Elizabeth City, North Carolina

Raleigh, North Carolina(2 reports)

Winston Salem, North Carolina

Belfield, North Dakota

Haviland, Ohio

Oklahoma City, Oklahoma

Mill City, Oregon

New Hope, Pennsylvania

Wilkes Barre, Pennsylvania

Nashville, Tennessee

Athens, Texas

Cypress, Texas

Longview, Texas

Rhome, Texas

Alexandria, Virginia

Lexington, Virginia

Richmond, Virginia

show all

Featured Videos

Gardener's Notes:

6
positives
1
neutral
2
negatives
Sort By:
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R
R
Freeport, MI | August 2015 | negative

This plant will not quit! The specimen I have is approximately 30 years old and still gets 6-8 feet high every summer.
It appears ...Read More

F
Athens, TX | May 2015 | positive

I have grown this plant for about 4 years in part shade. It is quite an attention getter. I do get a few suckers but have a list of peo...Read More

C
Durham, NC | March 2015 | positive

Several years ago I was attracted to this plant as its leaves and arching stems reminded me of an Eastern Redbud as it appears to float i...Read More

C
ROSLINDALE, MA | February 2014 | negative

This pretty foliage plant is grown in a small garden I help maintain in Jamaica Plain, Massachusetts (Z6a). It's in a clump that hasn't s...Read More

V
Richmond, VA (Zone 7b) | April 2012 | positive

I planted a 3qt pot of this during the middle of a heat wave last summer. My garden is mostly shaded, and already full of hostas, so F...Read More

T
Lincoln, NE (Zone 5b) | July 2009 | positive

This is a beautiful carefree shrub...this variety is large. Green/white varigated leaves with reddish/pink veining and red stems. Large n...Read More

M
Coon Rapids, MN (Zone 4a) | February 2008 | positive

A very lovely plant which literally glows. The strange thing about its variegation is that it will always clump the heaviest at the top l...Read More

A
Glenn Dale, MD | October 2007 | neutral

This plant is actually considered an invasive species here in Maryland. It tends to take over in areas where the soil has recently been ...Read More

R
Gainesville, GA (Zone 7a) | September 2007 | positive

This is a terrific decorative deciduous shrub/large perennial here in my zone 7 North Georgia garden. It dies completely to the ground in...Read More

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