Plant ID forum→I see this ground cover everywhere lately. Anyone know its name? SF Bay Area.

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San Francisco Bay Area
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SFBayAreaGardener
May 11, 2020 12:54 PM CST
This groundcover plant seems to be growing everywhere in the moderate SF Bay Area. Very vigorous. In good light it's covered in these spherical inflorescences that look a bit like clover (superficially) that fade from pink to white. Comes up volunteer in places that get regular water. This photo is a volunteer growing under a Meyer Lemon tree.

Thumb of 2020-05-11/SFBayAreaGardener/cd1c33

[Last edited by SFBayAreaGardener - May 11, 2020 12:59 PM (+)]
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Name: Kelly
Redding, California (Zone 9b)
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KellyFW
May 11, 2020 1:12 PM CST
Polygonum capitatum, a low growing Knotweed.
San Francisco Bay Area
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SFBayAreaGardener
May 11, 2020 1:21 PM CST
So, not a weed?

Seriously, this is widely planted. It is a fast covering plant with attractive leaves, evergreen and covered in pink flowers essentially all year in our climate. But, it seems to me that it has great potential to become invasive

Very pretty actually. It does seem to be be limited by water, which will keep it from being too invasive here in California.

Thank you so much for your quick response.
Name: Kelly
Redding, California (Zone 9b)
Xeriscape Orchids Garden Photography Bee Lover Birds
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KellyFW
May 11, 2020 1:43 PM CST
SFBayAreaGardener said:So, not a weed?

Seriously, this is widely planted. It is a fast covering plant with attractive leaves, evergreen and covered in pink flowers essentially all year in our climate. But, it seems to me that it has great potential to become invasive

Very pretty actually. It does seem to be be limited by water, which will keep it from being too invasive here in California.

Thank you so much for your quick response.


"Weed" is a matter of context. While some gardeners in your area may plant it, I'm guessing that many others had it arrive as a "weed". In your mild climate it may be considered an invasive species. At least it is pretty. Most of my weeds aren't. nodding
San Francisco Bay Area
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SFBayAreaGardener
May 11, 2020 1:51 PM CST
Nor my weeds. Especially the knotweed (different species) which most certainly is a weed. I guess some knotweeds are not. Weeds, that is.
[Last edited by SFBayAreaGardener - May 11, 2020 1:52 PM (+)]
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Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
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plantladylin
May 11, 2020 2:33 PM CST
Polygonum capitatum is apparently a synonym; here's our database entry for your plant: Pink Knotweed (Persicaria capitata) and a couple of member photos for comparison:

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