Photo by Melody

PlantFiles: Giant Fleeceflower, White Fleece Flower, White Dragon
Persicaria polymorpha

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Family: Polygonaceae
Genus: Persicaria (per-sih-KAR-ee-uh) (Info)
Species: polymorpha (pol-ee-MOR-fuh) (Info)

Synonym:Polygonum polymorphum

4 vendors have this plant for sale.

11 members have or want this plant for trade.

Category:
Perennials

Height:
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade

Danger:
N/A

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Foliage:
Deciduous

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
From softwood cuttings
By simple layering

Seed Collecting:
Unknown - Tell us

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There are a total of 17 photos.
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Profile:

7 positives
1 neutral
1 negative

Gardeners' Notes:

RatingAuthorContent
Neutral coriaceous On Feb 18, 2014, coriaceous from ROSLINDALE, MA wrote:

This perennial is a well-behaved, long-lived clump-former, though anyone planting it should be prepared for its size---mature plants usually get at least 6' high. Top growth may reach 8' across, but it doesn't require support in full sun.

It looks alarmingly like some closely related invasive plants (especially Japanese knotweed), but it doesn't invade natural areas and it doesn't spread beyond its usual clump size in the garden. Anyone with a plant sending up shoots 6 feet beyond the clump has a mislabeled plant.

It does have a very long summer season of bloom, and it looks good in its first flush of bloom, but I'm not as enthusiastic about this plant as many gardeners. Perhaps if I were willing to deadhead its spent flowers, I'd be more susceptible to its charms. But I dislike its appearance in late summer with all the disintegrating inflorescences mixed in among the new ones, and I'm not willing to do so much deadheading.

Usually sold in commerce as "Persicaria polymorpha", but this name seems to be erroneous. It appears to be a recently developed sterile hybrid of unknown parentage.

Positive MarkPatton On Jun 13, 2013, MarkPatton from Calgary
Canada wrote:

This grows very well in Zone3 in Calgary. I have had my clump for 8 years and it has just now begun to spread at a greater rate. Prior to this year, the clump simply became wider and wider. Now, it is sending shoots 6 and 7 feet away from the mother plant. I am a bit surprised by this, but the shoots are easily uprooted. Love this plant, but can understand the concern in more temperate climates.

Positive arthurb3 On Sep 2, 2012, arthurb3 from Raleigh, NC (Zone 7b) wrote:

Not aggressive at all but does grow large so plant it in a location with space. A wonder full plant! Arthur in the Garden!

Positive patsyrose On May 15, 2012, patsyrose from welland, ON (Zone 5b) wrote:

I just read all about this plant at http://www.overplanted.com
I bought my plant in 2006 and was amazed at its size, energy and attractiveness. It shares space with a Red Osier Dogwood, three varieties of grasses, Golden Ninebark and Diablo Ninebark, a low-growing Rhodendron and some yellow Daylilies.
This year, for the first time I have at least 5 offshoots, and I'm looking forward to transplanting them. I have to do some serious research on how to go about that.
P

Positive mdeano On Jul 17, 2008, mdeano from Monticello, MN (Zone 4b) wrote:

This plant has grown very successfully in my zone 4 garden on the north side of my home in almost complete shade. It has grown larger but not moved from it's own clump. Very beautiful. I am planning on dividing the clump this fall and spreading it out along the whole wall. Flowers last for almost a month!

Positive runningdeer On May 3, 2008, runningdeer from River Falls, WI wrote:

This plant is an awesome performer in my garden. I have it in the back of the garden in part sun/ part shade with a large evergreen as a backdrop. It grows to about 5 feet in height and about 5 feet in width. I have day lilies at the base of this plant but I must move them this year because I am unable to see them very well because the girth of this plant.

It's very fun to watch this plant take shape because I swear it grows at least 5 inches a day!

Positive reinbeau On Oct 8, 2007, reinbeau from Hanson, MA (Zone 6a) wrote:

My mother has this in her zone 6a garden three miles from me, and it is a beauty! It behaves itself, hasn't propogated itself beyond the clump it's growing in, and is a wonderful backdrop plant planted against her retaining wall.

Positive rcn48 On Feb 20, 2006, rcn48 from Lexington, VA (Zone 6a) wrote:

Bold landscape plant with a shrub-like habit - excellent for a back border. Wonderful textured leaves with giant fluffy white astilbe-like blooms in early summer. One of Wolfgang Oehme's favorite plants!

Negative mountaindog On Feb 19, 2006, mountaindog from Phoenicia, NY (Zone 5a) wrote:

While this species of Persicaria is not the highly invasive Japanese Knotweed, it is related (see "Polygonum cuspidatum" in this database, previous scientific names of JP also include Polygonum sieboldii, Polygonum japonicum, Polygonum zuccharini Small, Pleuropterus zuccarinii, Polygonum reynoutria (in USA horticulture trade)).

Persicaria polymorpha is a clump-forming, apparently non-invasive cultivar that is highly ornamental, however, I've changed my opinion on Persicaria since I first obtained the plants a few years ago. I was surprised at how large and spread-out my Persicaria plants grew after the first year, to the point where it was a bit alarming. I suspect that they could regenerate very easliy from roots spreading, and since they are not a native American plant, and are related to a really invasive pest here in the Catskills (knotweed), I decided to eradicate the Persicaria from my gardens and not take any chances in being responsible for the spread of yet another invasive pest.

I have since replaced them with a beautiful white form of native butterly weed (Asclepias Tuberosa) that I got from a native plant nursery here in the Catskills. The white buterfly weed ( a white milkweed) has very nice looking foliage and blooms with large white flat flowers for a long period mid-summer, and looks great next to blue or purple native phlox as well. I highly reccommend the native butterfly weed.

Regional...

This plant has been said to grow in the following regions:

Valrico, Florida
Buffalo Grove, Illinois
Chicago, Illinois
Hanson, Massachusetts
Roslindale, Massachusetts
Monticello, Minnesota
Phoenicia, New York
West Kill, New York
Greenville, North Carolina
Raleigh, North Carolina
Page, North Dakota
Ashland, Ohio
Highland Heights, Ohio
Ashley, Pennsylvania
Lexington, Virginia
East Port Orchard, Washington
River Falls, Wisconsin



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