Also known as Plume Knapweed
Centaurea nervosa, or singleflower knapweed, is a perennial herb known for its solitary, showy flower heads, offering vibrant color to gardens and natural landscapes.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6 hours of direct sunlight daily for best flowering.
Moderate
50% intensity
Allow soil to dry slightly between waterings. Reduce in winter.
Well-drained
50% intensity
Moderate
50% intensity
Prefers moderate temperatures; can withstand some frost.
Low
25% intensity
Appreciate occasional feeding, especially in poor soil.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly during the growing season, especially in dry periods. Allow the soil to dry out slightly between waterings.
Reduce watering in autumn and winter, providing just enough to prevent the soil from becoming completely parched. Overwatering can lead to root rot.
Deadhead spent flowers regularly to encourage more blooms and prevent self-seeding. Cut back the plant in late autumn or early spring to remove dead or damaged stems and to shape the plant.
This also helps maintain a tidy appearance.
Propagate by seeds sown in spring, either indoors or directly outdoors after the last frost. Division of established clumps in spring or autumn is another effective method.
Ensure new plants receive adequate moisture and are protected from extreme conditions.
Established plants are generally best left undisturbed in their preferred location. If repotting is necessary, typically for container-grown specimens, do so in spring before new growth begins.
Use a well-draining potting mix and a pot only slightly larger than the current one.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Singleflower Knapweed (Centaurea nervosa)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| kingdom | Plantae |
| division | Tracheophyta |
| class | Magnoliopsida |
| order | Asterales |
| family | Asteraceae |
| genus | Centaurea |
| species | Centaurea nervosa |
Answers based on plant encyclopedia data
