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PlantFiles: Pink Knotweed
Persicaria capitata

 
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Family: Polygonaceae
Genus: Persicaria (per-sih-KAR-ee-uh) (Info)
Species: capitata (kap-ih-TAY-tuh) (Info)

Synonym:Polygonum capitatum

6 members have or want this plant for trade.

Category:
Groundcovers

Height:
under 6 in. (15 cm)

Spacing:
15-18 in. (38-45 cm)

Hardiness:
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Sun Exposure:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Pink

Bloom Time:
Mid Spring
Blooms repeatedly

Foliage:
Variegated

Other details:
Average Water Needs; Water regularly; do not overwater
May be a noxious weed or invasive

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings

Seed Collecting:
Unknown - Tell us

By Zanymuse
Thumbnail #1 of Persicaria capitata by Zanymuse

By alhanks
Thumbnail #2 of Persicaria capitata by alhanks

By Ulrich
Thumbnail #3 of Persicaria capitata by Ulrich

By Chilidawg
Thumbnail #4 of Persicaria capitata by Chilidawg

By violabird
Thumbnail #5 of Persicaria capitata by violabird

By ginger749
Thumbnail #6 of Persicaria capitata by ginger749

By ginger749
Thumbnail #7 of Persicaria capitata by ginger749

There are a total of 8 photos.
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Profile:

1 positive
4 neutrals
1 negative

Gardeners' Notes:

RatingAuthorComment
Neutral macybee On Jul 4, 2007, macybee from Deer Park, TX
(Zone 9a) wrote:

In Deer Park, Tx
This is a perennial groundcover. My girlfriend in same neighborhood has it all over her yard. I'm having a hard time even rooting it. (It's going to work this time)
I think it is very pretty.

Neutral jcangemi On May 16, 2006, jcangemi from Clovis, CA
(Zone 9a) wrote:

I always thought it was pretty, when in other people's landscape. Though uninvited, it self-seeded from flower beds some100 yards or so away and it has now taken over 3 of my large flower beds and I'm AGGRESSIVELY removing it. It has choked out all other plants including Stachys byzantina or Lamb's Ear, a once beautiful creeping wooly thyme, many beautiful clumps of Cerastium tomentosum 'Snow in Summer', a gorgeous sedum ground cover and my annuals are unable to reseed, i.e. lobelia, which readily self-sows. I still think it is pretty and in the right place, a good filler, but I don't have that kind of spot. Be careful w/this one.

Positive Joy On Apr 16, 2006, Joy from Kalama, WA
(Zone 8b) wrote:

One of my plant books also gives this the common name of 'Pink bubbles' I've also heard it called 'Pink buttons'.
It makes a nice and interesting ground cover. The more sun it gets the deeper the color on both the foliage and the small button like flowers. And it's pretty drought tolerant.
Here in my zone 8b garden in the Pacific Northwest it dies back completely in the winter and comes back each spring. I'm not having the the same problem with it being so invasive as others are having. Maybe the fact that it goes completely dormant here keeps it from being too aggressive?

Negative jkom51 On Aug 8, 2003, jkom51 from Oakland, CA
(Zone 9b) wrote:

This plant competes on equal footing with oxalis as being aggressive to the point of invasive. In a frost-free zone I would be very careful where this plant is sited. It will literally travel hundreds of feet and pop up where it is least expected, which is not necessarily a virtue! It is very pretty in flower, however, and pulls up fairly easily. Apparently pest-free as well.

Neutral Weezingreens On Sep 5, 2002, Weezingreens from Seward, AK
(Zone 3b) wrote:

Pink Knotweed self seeds readily where climate permits (zones 8-9). Native to China and the Himalayas, this plant is a member of the buckwheat or dock family. Its foliage is evergreen in milder climates.

Neutral Zanymuse On Apr 20, 2001, Zanymuse from Scotia, CA
(Zone 9b) wrote:

Very vigorous vining ground cover. Can be invasive. Leaves are deep green with burgandy chevrons. Stems are reddish and the flowers are tiny pink balls.

Regional...

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

, (2 reports)
Brentwood, California
Cambria, California
Carlotta, California
Clovis, California
Manhattan Beach, California
Oakland, California
San Francisco, California
San Rafael, California
Santa Rosa, California
Bradenton, Florida
Fairport, New York
Austin, Texas
Deer Park, Texas
Fort Worth, Texas
Garland, Texas
Houston, Texas
New Caney, Texas
Port Lavaca, Texas
San Antonio, Texas
Kalama, Washington



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