Cirsium undulatum
TAXONOMY
FamilyAsteraceae
GenusCirsium
Zone3
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Cirsium undulatum, commonly known as wavyleaf thistle, is a perennial herbaceous plant in the family Asteraceae. It is native to North America, particularly in temperate regions. The plant is known for its wavy-edged leaves and purple flower heads. It typically grows in prairies, meadows, and open woodlands.
ALSO KNOWN AS
Wavy-Leaved Thistle
Carduus megacephalus
Carduus undulatus
Carduus undulatus var. undulatus
Cirsium megacephalum
Cirsium undulatum f. undulatum
Cirsium undulatum subsp. undulatum
Cirsium undulatum var. franktonis
Cirsium undulatum var. megacephalum
Cirsium undulatum var. undulatum
Cnicus undulatus
Cnicus undulatus var. megacephalus
Cnicus undulatus var. undulatus
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy4 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Wavyleaf thistle thrives in temperate climates with moderate temperatures. It prefers full sun and well-drained soil. Watering should be done sparingly, allowing the soil to dry out almost completely between waterings. The plant can tolerate moderate humidity levels.Soil
Cirsium undulatum prefers well-drained loam soil. It can tolerate a range of soil types but thrives best in nutrient-rich, slightly acidic to neutral soil. Good drainage is essential to prevent root rot.Fertilizer
This plant does not have high fertilizer requirements. If needed, a balanced, slow-release fertilizer can be applied sparingly during the growing season.Repotting
Wavyleaf thistle is not typically grown in pots, so repotting is not a common practice. If grown in a container, repotting should be done in early spring before new growth begins.Propagation
Cirsium undulatum can be propagated by seeds or root cuttings. Seeds should be sown in the fall or early spring. Root cuttings can be taken in late winter or early spring and planted in well-drained soil.Pruning
Pruning is not generally required for this plant. However, dead or damaged leaves and flower heads can be removed to maintain a tidy appearance and encourage new growth.Toxicity
Wavyleaf thistle is not known to be toxic to pets or humans. However, the spiny leaves and stems can cause physical irritation if handled without care.REVOLUTIONIZE YOUR PLANT CARE
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