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Description
Cirsium Hookerianum, also known as Hooker’s Thistle, is a species of thistle in the Asteraceae family. It is a perennial herb that grows up to 3 feet tall and 2 feet wide. The plant produces tall, sturdy stems that are covered in prickly spines. The leaves are long and narrow, up to 12 inches long, and covered in small prickles. The flowers are pink to lavender and bloom in late summer to early fall.
Taxonomic Information
| Domain: | Eukaryota |
| Kingdom: | Plantae |
| Phylum: | Tracheophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Cirsium |
| Species: | Cirsium Hookerianum |
Appearance
Cirsium Hookerianum is a tall, spiny plant that produces long, narrow leaves and pink to lavender flowers. The stems are sturdy and covered in prickly spines that can be painful to the touch. The leaves are also covered in small prickles. The plant can grow up to 3 feet tall and 2 feet wide, making it a striking addition to any garden.
Care Guide
Cirsium Hookerianum is a hardy plant that is easy to care for. It prefers well-draining soil and full sun, but can tolerate some shade. Water the plant deeply once a week, or more often in hot, dry weather. Fertilize the plant in the spring with a balanced fertilizer. Cirsium Hookerianum is hardy in USDA Hardiness Zones 5-9.
Common Pests & Diseases
Cirsium Hookerianum is relatively pest-free, but can be susceptible to aphids and spider mites. Treat infestations with insecticidal soap or neem oil. The plant can also be susceptible to fungal diseases such as powdery mildew and rust. Treat fungal infections with fungicide and remove any infected plant material.
Habitat
Cirsium Hookerianum is native to western North America, where it grows in dry, rocky habitats such as hillsides and meadows. The plant is often found in disturbed areas, such as along roadsides and in abandoned fields.
Question and Answer
Q: Can Cirsium Hookerianum tolerate drought?
A: Yes, Cirsium Hookerianum is drought-tolerant and can survive in dry conditions.
Q: Can Cirsium Hookerianum be grown in containers?
A: Yes, Cirsium Hookerianum can be grown in containers, but it will require a large pot and regular watering.
Q: How often should I fertilize Cirsium Hookerianum?
A: Fertilize Cirsium Hookerianum once a year in the spring with a balanced fertilizer.
Q: How do I propagate Cirsium Hookerianum?
A: Cirsium Hookerianum can be propagated by division in the spring or by seed in the fall.
Related Plants
- Cirsium altissimum
- Cirsium arvense
- Cirsium discolor
- Cirsium vulgare
References
- “Cirsium hookerianum.” Missouri Botanical Garden. Missouri Botanical Garden, n.d. Web. 18 Aug. 2021.
- “Cirsium hookerianum.” Plants of the World Online. Kew Science, n.d. Web. 18 Aug. 2021.
- “Cirsium hookerianum.” USDA Plants Database. United States Department of Agriculture, n.d. Web. 18 Aug. 2021.
