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Centaurea sphaerocephala
Centaurea sphaerocephala
Centaurea sphaerocephala
Centaurea sphaerocephala

Centaurea sphaerocephala

TAXONOMY

FamilyAsteraceae
GenusCentaurea
Zone7

ABOUT

Centaurea sphaerocephala, commonly known as the globe knapweed, is a perennial plant in the Asteraceae family. It is native to the Mediterranean region and is known for its spherical, thistle-like flower heads. The plant is drought-tolerant and thrives in well-drained soils.

ALSO KNOWN AS

Yellow Hardhat
Centaurea sphaerocephala var. fontanesii
Centaurea sphaerocephala var. oligocentra
Centaurea sphaerocephala var. sphaerocephala
Centaurea sphaerocephala var. transiens

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Centaurea sphaerocephala requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and can tolerate dry conditions. Water the plant sparingly, allowing the soil to dry out between waterings. Maintain moderate humidity levels.
Soil
The plant prefers well-drained loamy soil. Ensure the soil has good drainage to prevent waterlogging, which can lead to root rot. A slightly acidic to neutral pH is ideal.
Fertilizer
Use a balanced fertilizer with a nutrient composition of 5-10-10. Fertilize the plant during the growing season to promote healthy growth and flowering.
Repotting
Repot the plant when it outgrows its current container or when the soil becomes compacted. Choose a slightly larger pot with good drainage. Repotting is best done in the spring.
Propagation
Centaurea sphaerocephala can be propagated by seeds or division. Sow seeds in the spring or divide mature plants in the fall. Ensure the new plants have adequate space to grow.
Pruning
Prune the plant to remove dead or damaged stems and to encourage bushier growth. Pruning is best done in the early spring before new growth begins.
Toxicity
Centaurea sphaerocephala is not known to be toxic to pets or humans. However, it is always best to keep plants out of reach of pets and children.
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