Centaurea solstitialis
TAXONOMY
FamilyAsteraceae
GenusCentaurea
Zone6
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Centaurea solstitialis, commonly known as Yellow Star-thistle, is a member of the Asteraceae family and the Centaurea genus. It is an annual or biennial plant that thrives in temperate climates. Native to the Mediterranean region, it has become invasive in many parts of the world, particularly in North America. The plant is known for its spiny flower heads and bright yellow flowers.
ALSO KNOWN AS
Triplocentron Solstitiale
Yellow Starthistle
Calcitrapa solstitialis
Calcitrapa solstitialis subsp. solstitialis
Centaurea solstitialis var. solstitialis
Cyanus solstitialis
Leucantha solstitialis
Seridia solstitialis
Setachna solstitialis
Solstitiaria solstitialis
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Yellow Star-thistle prefers full sun and moderate temperatures. It is drought-tolerant and does not require frequent watering. The plant thrives in well-drained soil and can tolerate a range of soil types. It does not require high humidity and can grow well in average conditions.Soil
Centaurea solstitialis prefers well-drained loamy soil but can adapt to various soil types, including sandy and clay soils. It is important to ensure good drainage to prevent root rot. The soil should be allowed to dry out between waterings.Fertilizer
This plant does not require regular fertilization. If the soil is particularly poor, a balanced, slow-release fertilizer can be applied sparingly during the growing season.Repotting
As an annual or biennial plant, Centaurea solstitialis does not require repotting. It completes its life cycle within one or two years and will not need to be moved to a larger container.Propagation
Yellow Star-thistle is primarily propagated by seeds. Seeds should be sown in the spring or fall, directly into the soil. They require light to germinate, so they should not be covered with soil. Germination typically occurs within 1-2 weeks.Pruning
Pruning is not necessary for Centaurea solstitialis. However, removing spent flowers can help prevent the plant from self-seeding and becoming invasive.Toxicity
Centaurea solstitialis is not known to be toxic to pets or humans. However, its spiny flower heads can cause physical discomfort if handled without care.Additional
Yellow Star-thistle can become invasive in some regions, so it is important to manage its growth and prevent it from spreading uncontrollably. Regular monitoring and removal of unwanted plants can help control its spread.REVOLUTIONIZE YOUR PLANT CARE
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