Singleflower knapweed (Centaurea uniflora)

Singleflower knapweed

Also known as: One-flowered centaury

Singleflower knapweed has a thistle-like appearance with its spiky purple flower. Unlike similar species, this plant only produces one single, showy flower. This characteristic explains its common name, Singleflower knapweed, and its Latin name, Centaurea uniflora, as both reference the solitary flower. Like other plants in the genus, singleflower knapweed has weed-like tendencies and likes to grow in dry fields and meadows where it can negatively affect agricultural practices.

Scientific classification

Species

Singleflower knapweed (Centaurea uniflora)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

2 cm to 4 cm

Flower Size

Purple

Flower Color

Semi-evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Distribution of Singleflower knapweed

Distribution Map

Singleflower knapweed has a native range that encompasses the mountainous regions of Southern Europe. It flourishes within the alpine and subalpine zones, demonstrating a preference for calcareous substrate. Although its distribution is relatively limited, the plant hasn't extended significantly beyond its indigenous locales. Singleflower knapweed’s presence remains mostly confined to its native ecosystem, where it continues to be predominantly found.

Native

Cultivated

Invasive

Introduced

No species reported

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Care Guide for Singleflower knapweed

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Singleflower knapweed thrives in well-drained soils with moderate moisture, reflecting its alpine origins. It prefers weekly watering to avoid over-saturation, supporting steady growth. Typically grown outdoors, singleflower knapweed adapts to temperate climates and can endure variable rainfall patterns.

Fertilize: Singleflower knapweed thrives with balanced fertilizers high in nitrogen, phosphorus, and potassium, applied bimonthly in the growing season and reduced in winter. Use half-strength solutions, water soil beforehand, and adjust frequency as singleflower knapweed approaches bloom to ensure healthy growth and prevent chemical burn.

Pruning: Singleflower knapweed is recognized for its singular blooms. Prune from early to late spring by removing old stems and crowded shoots to promote new growth and airflow. Conservative pruning enhances health and aesthetics, avoiding excessive removal of foliage.

Propagation: Singleflower knapweed can be effectively propagated through division, allowing for growth expansion by separating and replanting segments. Careful separation of root clumps ensures each section has healthy roots. Adequate space during replanting promotes vigorous growth in the new environment.

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Learn More About Singleflower knapweed

Sunlight Requirements

How to Transplant

How to Prune

How to Grow and Care

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