Pink Knotweed (Persicaria capitata)

Common names:
Give a thumbs up Pink Knotweed
Give a thumbs up Japanese Knotweed
Give a thumbs up Pink Bubble Persicaria
Give a thumbs up Pinkhead Smartweed

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 7b -15 °C (5 °F) to -12.2 °C (10 °F)
Maximum recommended zone: Zone 10b
Plant Height: 2 to 3 inches
Plant Spread: Forms dense carpets 2 to 4 feet or more.
Leaves: Unusual foliage color
Other: Green, highlighted with reddish-brown chevron design.
Fruit: Other: Achene, reddish-brown in color.
Flowers: Showy
Flower Color: Pink
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Underground structures: Taproot
Suitable Locations: Xeriscapic
Uses: Groundcover
Medicinal Herb
Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Resistances: Humidity tolerant
Drought tolerant
Propagation: Seeds: Other info: Will readily self seed.
Propagation: Other methods: Cuttings: Stem
Containers: Suitable for hanging baskets
Needs excellent drainage in pots

Knotweed 001

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Plant Events from our members
lovesblooms On February 23, 2018 Seeds sown
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Discussion Threads about this plant
Thread Title Last Reply Replies
I see this ground cover everywhere lately. Anyone know its name? SF Bay Area. by SFBayAreaGardener May 11, 2020 2:33 PM 5
unknown plant by sboon Aug 13, 2017 6:00 AM 3
Photo ID #21 by ElJardineroGringo Jan 17, 2017 9:38 AM 2
Groundcover ID needed by toy747 Aug 27, 2016 9:13 AM 3
Is this a houseplant growing outside? by Natalie Jul 27, 2014 7:31 PM 26
Haves and wants by Joy Jul 23, 2015 4:24 PM 6

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