Spotted Knapweed is a perennial with pink to purple flowers and a bushy appearance. It is considered invasive in many areas due to its ability to outcompete native plants.
Best time to see a Spotted Knapweed
The best time to see a Spotted Knapweed is June–August, when about 66% of U.S. sightings happen, based on 17,333 research-grade iNaturalist observations.
Not certain it is a Spotted Knapweed? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Spotted Knapweed sightings near you
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