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Knotgrass Flower Wikimedia Commons
Polygonaceae

Knotgrass Flower

Polygonum aviculare

Tenacity and perseverance.

Family
Polygonaceae
Genus
Polygonum
Native to
Europe, Asia, North America
Bloom season
Summer, Fall
Type
annual
Height
4-24 in
Sunlight
full sun
Soil
compacted, poor, well-drained
Water
low
Hardiness
2-11
Lifespan
annual

Did you know

  • Knotgrass is one of the most resilient weeds on Earth, thriving in heavily compacted soil where even other weeds cannot grow.
  • Shakespeare mentioned knotgrass in A Midsummer Night's Dream, where it was believed to stunt growth if consumed.
  • The tiny seeds are an important food source for many songbird species, and the plant is sometimes called 'bird's tongue.'
  • It has been used in traditional Chinese medicine for over 2,000 years to treat inflammation and infections.
  • The plant produces thousands of seeds per individual, which can remain viable in the soil for decades before germinating.

Color meanings

0

tenacity

1

persistence

2

simplicity

Uses

  • traditional medicine
  • wildlife food source
  • erosion control
  • folk herbal remedies