common knapweed

How to Grow and Care for common knapweed

common knapweed · Centaurea nigra
Also known as: bell weed; black centaury; black knapweed; bowl weed; bull weed; button weed; churl's head; club weed; crop weed; hard weed; hardhead; hardheads; horse knops; horse knots; iron hard; iron heads; iron weed; knob weed; knot weed; lesser knapweed; loggerheads; nob weed; Spanish buttons; sweeps; tassel

Prefers a well-drained fertile soil in a sunny position. Tolerant of dry, alkaline soils and established plants are tolerant of considerable neglect. Self-seeds readily and can become invasive

Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sun · Partial shadeInformation to be completed

Planting and Growing common knapweed

common knapweedcommon knapweedcommon knapweed
Care difficulty1 / 5
Watering scheduleModerate regular watering, allowing brief slight drying between soakings
Sunlight requirementsFull sun · Partial shade
Ideal temperatureInformation to be completed
Soil typeChalk · Clay · Loam · Sand
Soil pHAcid · Alkaline · Neutral
Soil moistureMoist but well drained
FertilizingBalanced perennial feed every four weeks from spring through summer
ToxicityInformation to be completed
Care Tips

Prefers a well-drained fertile soil in a sunny position. Tolerant of dry, alkaline soils and established plants are tolerant of considerable neglect. Self-seeds readily and can become invasive

How to Water common knapweed?

Moderate regular watering, allowing brief slight drying between soakings

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What Are the Sunlight Requirements for common knapweed?

Full sun · Partial shade

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What Is the Ideal Temperature Range for common knapweed?

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What Soil Is Best for common knapweed?

Soil type
Chalk · Clay · Loam · Sand
Soil pH
Acid · Alkaline · Neutral
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What Are the Moisture Requirements for common knapweed?

Moist but well drained

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How to Fertilize common knapweed?

Balanced perennial feed every four weeks from spring through summer

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How to Prune common knapweed?

No pruning required

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How to Propagate common knapweed?

Propagate by seed

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How to Transplant common knapweed?

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How to Care for common knapweed in Winter?

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How to Plant common knapweed?

Prefers a well-drained fertile soil in a sunny position. Tolerant of dry, alkaline soils and established plants are tolerant of considerable neglect. Self-seeds readily and can become invasive

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How to Repot common knapweed?

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How to Harvest common knapweed?

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Common Pests & Diseases

Diseases

May be affected by powdery mildews

Pests

Generally pest-free. Resistant to browsing by deer

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The Toxicity of common knapweed

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More General Info About common knapweed

Attributes of common knapweed

Plant typeHerbaceous Perennial
Height0.5-1 metres
Spread0.1-0.5 metres
FoliageDeciduous
HabitClump forming
OriginNW to Central Europe

Scientific Classification

Species
Centaurea nigra
Genus
Centaurea
Family
Asteraceae
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FAQs About common knapweed

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