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Diffuse Knapweed
Centaurea diffusa
In the United States:
Invasive
· also called white knapweed, tumble knapweed
Listed as invasive. Check local regulations — several jurisdictions restrict planting.
Honey bees visit for nectar and pollen as a late-summer resource in suitable habitats. Plants bloom from late spring to early fall depending on moisture and temperature. It is a biennial or short-lived perennial that reproduces by seed and thrives in disturbed dry open sites.
| Nectar | medium |
|---|---|
| Pollen | low |
| Bloom (US) | June–September |
| Duration | ~3 months |
| Type | Perennial |
| Sun | full |
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